Database Users

Newest Android head units

Hi,
It is really exciting that we are starting to get some real android car stereos on the market, that have software in them that can be entertained by the developers here on XDA. There are so many headunits that look the same with different hardware, look different with similar hardware, and are just altogether different. I can't find definitive information anywhere, and frankly search just returns too much scattered information to really sift through.
Needs:
Hands free quality is important.
hardware volume control - prefer a knob, but buttons are ok. I just do not want software volume buttons.
Rooted Android
3 sets of 4+ volt preouts, including controllable non-fading subwoofer preout
I don't care about a DVD/CD player - if it has one cool, but I don't need one.
What I'd like it to do:
"OK Google"
Tasker
Google Maps
Pandora
Spotify
Sirius/XM app - or Sirius satellite radio (I don't know if any of them do this natively)
Vevo
Kodi
Netflix
Hulu
Amazon Prime
Torque connected via bluetooth
bluetooth hands-free phone calls
WIFI tethered from Foxfi running on my phone
Am I looking for too much or is there a head unit that looks like it can accommodate this?
Summary Questions:
Other than price, is there any reason to consider the dual core (instead of the quad core) or the smaller resolution (i.e. are there some apps that don't work right with the larger resolution)?
Are some MCUs better than others?
Do all of the better Android head units suffer the problems with the microphone that will require modification to fix, or is there one out that has the fix already implemented? I saw the threads where people are desoldering stuff. Has that been resolved by some of the manufacturers, or am I destined to do that mod also?
Is there a really good aftermarket hands free microphone that is worth buying?
Is there sub pre-out control either on the stock firmware, or on a different ROM?
Is the sub pre-out affected by the fader?
What is the voltage at the pre-outs?
Do any of the units come with an IR sensor and/or a remote control?
Can I connect the bluetooth OBDII module, bluetooth phone, and wireless wifi tethering from the phone at the same time?
When text messages come into my cell phone, does the radio read them to me? Can I voice-to-text respond?
Does anyone see anything wrong with my needs, or the apps I plan to run?
Are any of them running newer iterations of Android? Is there anything stopping a developer from releasing a ROM with a newer android?
Should I be considering another unit? Is there an Android head unit other than one of the Hue Fei clones that would serve my needs better? Is there one Hue Fei clones that stands out as better than the others, or gets better support than the others, or that fits my needs better?

So it looks like the other two to consider other than the Hue Fei clones is the Newsmy which only has 1 RCA Pre-out and the Ownice which doesn't have root.

there is a new generation of AN-21U unbranded units floating around ali express. If you shop around you can get a good deal on one. Quad core R16 A9/1 GB RAM/up to 1080x600 res. There is little info on them so far since they are so new, but since they appear to be an update to a very popular pre-existing model, they should gain more support soon on xda.
http://forum.xda-developers.com/and...nd-generation-4-4-2-android-21u-ouku-t3230587
I have one coming in today and will update that thread with my impressions. I previously owned a carjoying UQ-124 so I will have a good unit to compare it to.
The carjoying unit was pretty solid but had one major issue - BT audio quality. The audio also was controlled by the MCU (poorly) which required a complex hardware mod to rectify. I also for some reason had stability issues w/ google now voice control (ok google)... worked sometimes but would crash >50% of the time.
I am hoping my new unit will not have these issues.

gijosh28 said:
So it looks like the other two to consider other than the Hue Fei clones is the Newsmy which only has 1 RCA Pre-out and the Ownice which doesn't have root.
Click to expand...
Click to collapse
The Newsmy CarPad III (NRXXXX) has 5.1 pre-out available and uses the same MCU and ROM as the CarPad II (NUXXXX)

https://www.indiegogo.com/projects/indashnet-world-s-first-open-source-infotainment/x/5292434#/story
This guy has been pretty responsive with his first 2 designs and now he's putting out an octa-core unit. Probably overkill but the indiegogo price is right. I don't know what his projected delivery dates are for this unit. You can check out his google+ page as well. That is his primary avenue for support and it seems to mostly work pretty well.

Hope i could provide some information. Please check the comments in quote.
gijosh28 said:
Hi,
It is really exciting that we are starting to get some real android car stereos on the market, that have software in them that can be entertained by the developers here on XDA. There are so many headunits that look the same with different hardware, look different with similar hardware, and are just altogether different. I can't find definitive information anywhere, and frankly search just returns too much scattered information to really sift through.
Needs:
Hands free quality is important.
hardware volume control - prefer a knob, but buttons are ok. I just do not want software volume buttons.
Rooted Android
3 sets of 4+ volt preouts, including controllable non-fading subwoofer preout
I don't care about a DVD/CD player - if it has one cool, but I don't need one.
What I'd like it to do:
"OK Google"
Tasker
Google Maps
Pandora
Spotify
Sirius/XM app - or Sirius satellite radio (I don't know if any of them do this natively)
Vevo
Kodi
Netflix
Hulu
Amazon Prime
Torque connected via bluetooth
bluetooth hands-free phone calls
WIFI tethered from Foxfi running on my phone
Am I looking for too much or is there a head unit that looks like it can accommodate this?
Summary Questions:
Other than price, is there any reason to consider the dual core (instead of the quad core) or the smaller resolution (i.e. are there some apps that don't work right with the larger resolution)?
Think mobile phone. it is similar.
Are some MCUs better than others?
What MCU done is about more low level works like power management. really depends on design. No base for comparing.
Do all of the better Android head units suffer the problems with the microphone that will require modification to fix, or is there one out that has the fix already implemented? I saw the threads where people are desoldering stuff. Has that been resolved by some of the manufacturers, or am I destined to do that mod also?
Most have mic built-in(in the panel), some have external connector which provide a chance to apply a good mic.
Is there a really good aftermarket hands free microphone that is worth buying?
No idea.
Is there sub pre-out control either on the stock firmware, or on a different ROM?
It is not about software/ROM/firmeware. this is by hardware design.
Is the sub pre-out affected by the fader?
Normally.
What is the voltage at the pre-outs?
depends on hardware design.
Do any of the units come with an IR sensor and/or a remote control?
Many.
Can I connect the bluetooth OBDII module, bluetooth phone, and wireless wifi tethering from the phone at the same time?
Wifi/BT same time for all head unit. BT OBD and BT Phone call together, it depends.
When text messages come into my cell phone, does the radio read them to me? Can I voice-to-text respond?
This could be done by one App which is not related to Head unit. don't know whether it exists already.
Does anyone see anything wrong with my needs, or the apps I plan to run?
could say no barrier. Need to check hardware related items.
Are any of them running newer iterations of Android? Is there anything stopping a developer from releasing a ROM with a newer android?
Lots of work is needed to port system to a newer version android. Similar as mobile phone.
Should I be considering another unit? Is there an Android head unit other than one of the Hue Fei clones that would serve my needs better? Is there one Hue Fei clones that stands out as better than the others, or gets better support than the others, or that fits my needs better?
no answer.
Click to expand...
Click to collapse

I posted my thoughts on the 2nd gen AN-21U vs joying UQ-124 here -
http://forum.xda-developers.com/and...eration-4-4-2-android-21u-ouku-t3230587/page3
summary - new unit is better than joying in every way except for customization and xda support. I have not applied an external amp or sub to my system yet, but I will soon. I am already using custom speakers (focal 8"). BT audio quality is night and day difference over joying. Bad BT audio quality is not universal, joying just did a poor job b/c they wired internal & external mic in parallel & used low quality bt module. I highly recommend it, though I have only had a short time with it (less than a day). My thoughts may change as I get more time to find issues.
@nonstop2050, I like how active you are here, I would have loved to buy one of your units had you supported my vehicle. If someone were to buy how long would you take to ship? I had to wait 3 weeks for my unit... I think they manufacture units as the orders come in, they don't keep stock on hand.

The joying units with a single volume knob allow you to adjust the pre out voltage. I have mine feeding into a 4 channel amp, powering front hertz components and a single JBL sub. I use the crossover on the amplifier - more scope for adjustability & probably performs more consistently than the one in the headunit feeding the sub pre out.

New Android Head Units from Pyle

Pyle has recently released a few head units running 4.4.4 Kitkat. From the Amazon description:
Android OS Computer:
Touchscreen 'Tablet-Style' Functionality
Smart Device MirrorLink/AirPlay Support
Processor: Quad Core 1.6 Ghz Cortex A9
OS Version: Android 4.4.4 (KitKat)
It also indicates "Unlock Tablet-Style functionality." I'm assuming this means it comes rooted.
While Pyle is not known as the paragon of quality, they appear to be the first brand with a US presence offering an Android HU. Since their other HUs appear to follow the US DIN standard these could have the advantage of fitting in one of the readily available dash kits.
Here are the two I found on Amazon:
[amazon dot com]/dp/B01BECUOTE/ref=wl_it_dp_o_pC_S_ttl?_encoding=UTF8&colid=S75ZYKYU5U3C&coliid=I25LAEC05MZLFW
[amazon dot com]/Pyle-PLDNAND621-Touchscreen-Navigation-Bluetooth/dp/B01BECUKD4/ref=pd_sim_sbs_422_1?ie=UTF8&dpID=51uMnRpESgL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1A4EM6W90HKY19XFNMQA_

how much RAM? I wonder where/how it was engineered? The biggest issue w/ these chinese HUs is the poor engineering standards. One of the biggest examples being the internal/external mic wired in parallel on joying/pumpkin HUs. This issue has been around for well over a year now, and despite pumping out new models they still haven't fixed this glaring issue.
To add to that, the whole MCU concept, and the fact that the BT is effectively de-coupled from the core system.
What I'd gladly pay $500 or so for (possibly more) -
- high quality DAC/pre-outs
- no MCU
- parrot BT FULLY INTEGRATED into the OS
- proper internal/external mic interaction
- octacore
- 2GB RAM
- android 5.0. Honestly not that big of a deal if the OS is stable and runs all the standard apps
- fully mappable/customizeable hotkeys for launching custom apps from SWC/physical buttons
That would be nice. I'd sacrifice my car custom plug & play HU with a standard double din w/ those features in a heartbeat. The glaring engineering flaws in all of these current android HUs is frustrating. But I live w/ it b/c it's still a nice upgrade over stock.

Hisma said:
how much RAM? I wonder where/how it was engineered? The biggest issue w/ these chinese HUs is the poor engineering standards. One of the biggest examples being the internal/external mic wired in parallel on joying/pumpkin HUs. This issue has been around for well over a year now, and despite pumping out new models they still haven't fixed this glaring issue.
To add to that, the whole MCU concept, and the fact that the BT is effectively de-coupled from the core system.
What I'd gladly pay $500 or so for (possibly more) -
- high quality DAC/pre-outs
- no MCU
- parrot BT FULLY INTEGRATED into the OS
- proper internal/external mic interaction
- octacore
- 2GB RAM
- android 5.0. Honestly not that big of a deal if the OS is stable and runs all the standard apps
- fully mappable/customizeable hotkeys for launching custom apps from SWC/physical buttons
That would be nice. I'd sacrifice my car custom plug & play HU with a standard double din w/ those features in a heartbeat. The glaring engineering flaws in all of these current android HUs is frustrating. But I live w/ it b/c it's still a nice upgrade over stock.
Click to expand...
Click to collapse
Closest I've seen is the in-dash.net unit which is octacore with android 5.1 coming sometime this year, (allegedly). The MCU issue is unfortunately unavoidable at least until Google adds native bluetooth HFP into AOSP, which isn't likely to happen. And even then you still need something to be the go-between control of the amplifiers, LCD brightness control, etc.
I have the octacore in-dash.net unit and it's pretty good. My biggest beef is with the bluetooth handling. The interface is fairly basic. I think one thing that these units need is their own 'contacts' and 'dialer' apps that can dial via the bluetooth service but that also interacts with my google contacts, google maps, phone links, etc so that I don't have to do the contacts sharing, or copy and paste phone numbers from web searches or maps searches. I've got the feeling that that is easier said than done but it is key in my mind.
This is my first android HU so I'm not super familiar with the mic issues that seem to plague them. My external mic seems to just be really quiet pickup. I was thinking of getting a little pre-amp for it to put in between the plug and the HU. Perhaps I should do some more research first?
I have just been using the built in amp so far. Was thinking about testing the pre-outs on this unit. I suppose I could just break it down and take a look at the components to see if I can determine what DAC is being used.
Oh, also I don't have SWC in my car but this unit is setup for them. Not sure the physical interface specifically as I didn't purchase that option but the mapping is all in the "vehicle interface settings" app on the unit.

Not all of these head units have the mic problem. But joying & pumpkin, which are two of the most popular models, do have this problem. I used to have a joying, now I have a 2nd gen AN-21U, and it doesn't have the mic problem.
Yes the ability to fully integrate our phones with google now via the HU would be perfect. Google now has all my contacts as I have an android phone and save my contacts to google. But trying to call a number this way goes nowhere. Really a way to make the whole experience as hands free as possible would be great. Ford has sync, mazda has gracenote, and there are others I'm sure that attempt to implement a fully hands free system.
Other users have already examined the DAC in these units. One made an audio mod that integrates the DAC directly with the unit instead of passing it through the MCU, which significantly improves the unit's audio capabilities. It's just another example of the head sctatching engineering decisions on these things.
more info here - http://forum.xda-developers.com/android-auto/mtcb-hardware-development/mtc-sound-controlling-bd37xxx-sound-t3234660
Btw I am not sure if there is a universal pre-out configuration for these, but my AN-21U has 1V unshielded pre-outs. Pretty frustrating. I get some "white noise" in the background when I up the volume thanks to the high noise floor. Considering putting in some high quality RCA cables to see if that helps, but obviously if the pre-out voltage was higher this would be less of an issue.

Pyle PLDNAND621
I 've bought and been using one of these for about a week now and had a couple questions for you guys. This radio seems to have an app for controlling the Bluetooth function and is not controlled within the settings menus. Do you think think the app could be changed as a Bluetooth obd2 module I use with other Android device works fine with the same car. I have the same question for the radio tuner app, I don't like the layout and it won't tell me the song titles . I search but can't find a "local station" radio tuner app.
Thanks for any ideas, Doug

I've got it and rooted it on 4.4.4 su etc ...flash fire enabled.....anyone point me to someone that could walk me thru dumping the rom on this unit and someone that can then make a custom recovery we would be in the game for this unit ..it has a recovery ..all I can say for right now .....v4a apk will not work on this unit due to some busy box error I cant stop ..I have it correct in the system ....so we need custom.rom.for it .....any one still wanna rip this thing?

lokisyn said:
I've got it and rooted it on 4.4.4 su etc ...flash fire enabled.....anyone point me to someone that could walk me thru dumping the rom on this unit and someone that can then make a custom recovery we would be in the game for this unit ..it has a recovery ..all I can say for right now .....v4a apk will not work on this unit due to some busy box error I cant stop ..I have it correct in the system ....so we need custom.rom.for it .....any one still wanna rip this thing?
Click to expand...
Click to collapse
Please help. I upgraded my PYLE PLDNANDVR 695 and lost bluetooth. Pyle wants me to send it in for repair. I much rather fixing this myself.

Need Help in Selecting the Correct Unit

I’ve been going around in circles trying to choose the correct Android head unit. It either has this but doesn't have that or does this but doesn't do that. For the past few years, I’ve had a Parrot Asteroid. I love it’s bluetooth, hands-free and ipod capabilities. It also got me interested in having the full Android os in my car (Parrot doesn't provide this).
So, I decided to make a list of exactly what I'm looking for, and enlist the advice of those who have hands-on experience with various Android head units to find the one I really want. I’m looking for a unit with the following (or, as close as I can get):
Bluetooth that downloads my contacts from phone to unit and allows me to receive and make calls from the unit. I have an iPhone 7. Voice activated calls would be nice, but not required.
Bluetooth that plays iPhone music, AND displays music info on unit and can be controlled (forward, back) from unit.
Full android o/s with ability to download and run apps from Playstore.
Usb, microphone, sd and bluetooth accessible to Android o/s and apps.
(In my research, I have discovered that a unit may have a built-in mic , usb and bluetooth; however, while the unit firmware can access them, apps running under Android o/s can’t)
Ipod capability -- Once iphone is connected via usb, I can search and play phone music library from the unit itself.
(All the video examples I have been able to find show a phone connected to a unit, and while the music plays on the unit, it is controlled on the phone)
I have read a lot about the Newsmy Carpad, and while the Android o/s functionality is exactly what I want, it is not clear from the videos I’ve seen how the Bluetooth (for phone and music) works in the real world, or if it even has ipod capability.
Interested in any suggestions about any units with which folks have real experience making calls and listening to music.
Thanks!!

Hello from Michigan

i'm new to the forum but have been lurking and reading up for quite a while on these android head units.
I need to replace the head unit in my 2009 Subaru Forester. I kind of a gadget freak, so these android units caught my eye. I was interested in the DSP units from androidautoshop.com but they warned me away from them and recommended their FX8 units (though they didn't really say why except that they were better quality).
The option I was looking at before the DSP unit was a new XTRONS unit which I could get from amazon. They seem to be well regarded from what I've read and the sound quality sounds like it's pretty good with the new amp chips they are using. Now just the other day I ran across a Dasaita unit on amazon that is specific fit for my vehicle so it wouldn't need an installation kit and BONUS has a 9" screen!
Does anyone have any insight on these units? If I go with an android unit it's going to be to satisfy my tech geek so I'm going to want to be able to customize it.
I need it to have good sound. Doesn't have to be audiophile quality, but good.
Decent to good FM reception.
good connection for Bluetooth (i've heard in particular that some of these units have both connection and sound quality issues with bluetooth)
ability to connect to an ODBII sensor for my car. One that I choose, not dictated to me by the head unit company prefereably.
ability to connect to an aftermarket rear view camera.
able to use Waze and Google maps. preferably with audible directions. also offline mapping for those occasions when I don't have a cell connection.
Ideally I would be connecting these direct to speakers, with the possiblity of adding external amplification down the road.
AndroidAutoShop.com FX8 - I have concerns about them and they don't really say much about why this unit is the best.
XTRONS - seems to be popular from what i've read, though i'm not sure about the bluetooth
Dasaita - love the look of the 9" screen with no ugly install kit. Quite a bit more expensive but possibly worth it? I just can't find much info about these. I think I read somewhere on this site that they were pretty good, but I don't know where and it wasn't about this specific unit.
I'm not allowed to post links to the 3 units above yet, but the first one is on androidautoshop and the last 2 are readily available on Amazon.
Are any of these a good choice for me? or possibly a different recommendation? or should I just forget it and go with a higher end Kenwood or Pioneer head unit with Android Auto and use an HDMI for any video needs? I'm not against tinkering and these seem like a really cool option (possibly saving money over traditional head untis as well) but I don't want to get a giant headache that just never works right.
any help from you guys is greatly appreciated.

Confused with options for a Highlander

I found this site from a comment on a youtube video where I was researching options for getting a head unit that is better than Toyota included for my Toyota Highlander Limited Hybrid. I'm sorry for the length of this post but I spent hours reading and watching youtube and I think I'm on right path, but I feel like I just need a little validation...
For reference, I'm an Apple mobile and tablet user but I owned a Samsung phone for about 3 months so I know what an Android launcher and the marketplace is. I know there are stores for hacked products, but I ended up with ads all over that phone so I prefer not to go that route. I'm not a big tinkerer - once I get something set where I want it, I won't usually change the settings unless I find a need.
I think my post will give you a good idea about what level of knowledge I have - at least you know I tried. If there is highlander or hybrid specific feedback I'm overlooking somewhere, please let me know. If I'm missing something key to decide between systems let me know.
1. When I look at the forum categories, they are broken up into terms I'm not familiar with. I believe FYT Android is where I need to focus because I see references to the units I'm researching there. But I don't understand why they are considered FYT.
2. I'm trying to stay in the $500 range and get something that works well enough that I'll use it for more than just the radio - without breaking functionality but the canbus thing is new to me. I get the concept - my car's personal IoT/LAN. But does the dash operate independently of the headunit? I sort of feel like somethings will be independent and others will not. For example, I suspect the dash display will know my speed, trip miles, direction (compass), when I need an oil change. But I feel like the option for the radio is fed from the head unit. I feel like anything that appears on my dash when I'm using the GPS (like turn next left) is fed from the head unit. Is that correct? If yes, do those functions usually stop displaying on the dash with a replacement head unit?
3. I have buttons on the dash for different features on the car. I suspect most of those work independently of head unit - like the mirror heaters. But what about accident avoidance features? Those tend to display on my dash - are those possibly affected by a different head unit? And I have a button so I can turn on 360 video - I mainly use it to see how close I am to the car in front of me when parking in a tight space. I suspect that button will work with any head unit that has front camera and/or 360 degree integration.
4. From my research, I have been focusing on units that are 4 GB/64 GB although it sounds like 2 GB/32 GB would work just fine as long as I don't store over 32 GB of apps and data.
5. Items that don't differentiate: I expect these options to be the same result across all units. Please let me know if you know differently.
-Apple car play - All have it & should function exactly the same. (I don't need android phone integration but I know this does differ on units)
-Phone call integration - looks like all use same default android app. I am very interested in how clarity of calls might differ, but I think all are using same default android function and all are able to use an included external microphone.
-Toyota OEM microphone integration - it's unclear if any will integrate with existing Toyota mic but I suspect this won't yield a result I'm happy with in either case.
- Toyota speaker button on wheel control - I think this button fails to work on every integration. I would like this to work but even the Toyota system is so unreliable I don't use it.
- Marketplace apps - All should integrate with marketplace apps exactly the same.
6. So here is my list of options I came up with in order of most likely to least. Is there another brand I should research...
- Teyes CC3 (for highlander 2015-18) - It looks like it matches integration with the best out there. I don't care about the "Porsche simulator", but it still looks like the easiest to use launcher on the market & they are actively updating it. I cannot find the same level of highlander specific details I find on the SYGAV, but reviews seem overwhelmingly positive so I suspect it'll work just as well. My concern is that I have to order directly from alibaba and wait a month to receive and they seem to send wrong parts. I haven't used alibaba but it looks like the customs costs are included in the price of $435 (364+70.76). Does anyone know if this is accurate or if there are other fees? The main complaint I hear with this unit is that it is locked down, but I think that means for adding launchers and the like that I am not interested in.
- SYGAV (for highlander 2015-18) - I don't really love the user interface on this one. But this one is the one I have found most highlander related data on and it gives me some comfort I might have less issues getting it to work. I can find nothing close to this level of detail on the other brands about highlander installs.. I have read user responses that Carplay & android auto require no additional parts to install, 360 degree camera works as well as front camera view, Hybrid info displays. For the camera inputs, it sounds like I can use my OEM cameras but I may need a camera cable adapter (unclear if included in package). One user stated that to get it to work in a highlander, I need to get the Motorola 1 M 2 F & GM adapter to Motorola (for reception). One user states that they have TPMS working, but it's unclear if they connected to the TPMS already in tires or if they had to buy separate TPMS tire plugs. The main complaint is the GPS mapping if basic IGO.
- Dasaita (for highlander 2015-18) - This brand seems like the next most popular after Joying. It looks like they have 3 launchers they develop and you can install whichever you like best. In regard to the UI, I feel like this brand comes in 2nd after Teyes. But I can't find as detailed user experiences with highlander and which functions work and which do not.
- Joying - I am not actively researching this one but everyone seems to be using this one. I was considering this one but I couldn't locate any highlander option anywhere - not even from their website (joyingauto.eu). That sounds like I'd have to figure out the canbus thing on my own and find the plastic frame to put it in my dash & I don't feel like I'm knowledgeable enough to go that route. I really don't understand why this one is so popular above competition - it is one of the highest priced if I buy from the US markets. Everyone that uses it seems to add a separate launcher which makes me question whether Joying's UI development isn't all that great. I know some others lock down their products so you can't tinker as much. Is that why it's popular - because it isn't locked down? If so, I see similar hardware on cheaper units. It sounds like the UI development/support/upgrades is quite a bit of what one is paying for when buying these.
7. Maps - this is one of my major complaints from my Toyota unit . I do not see anything that makes me feel that the maps included with ANY of the units are any better. Most seem to use IGO GPS which seems to get the same complaints I have when using my GPS. I believe the only solution is a unit that includes apple car play. Or am I overlooking any with better mapping functions?
8. JBL audio - I know I have the JBL system in my car and on regular car head units this seems to make a difference with integration, but from my list above, I can't find anything to indicate that any will not work with the JBL system. I'm assuming it is because the car based units have hardware incompatibilities that android based do not, but it's really unclear to me. Can someone provide clarification? On the SYGAV unit, I read a review that it needs an amp to sound as good as an OEM unit, but I think that would apply to all of these units equally. In either case the Toyota JBL system has an AMP under my center console. I can't find this level of integration information but I think all units will connect to the amp.
9. 12 speakers - I feel like this will determine which system is best if I can figure it out... The JBL audio has 12 speakers (one of which is a subwoofer) in 10 locations in the highlander. I can't locate specific details on any of these if anyone gets all the speakers to connect successfully. I did see that one of these brands have 5.1 outputs but I don't really know what I need to be looking for in descriptions to figure this out on each unit. Any suggestions how to figure this out.
10. Video playback - All of these support video playback but it sounds like auto carplay may block mirroring while the car is actively moving. Is the behavior going to be the same across all units? I sort of feel like this is something that works differently across different brands, but I can't find details to figure out which allow video playback when car is moving.
11. Hybrid integration - SYGAV is the only unit I've seen where someone has hybrid info working on a highlander, but I feel like all the systems may work very similarly. I believe the dash display will work independent of the head unit so I can always switch the dash display when I want to see what the hybrid system is doing. I think another brand states it has hybrid integration but I couldn't find any responses where someone had it working successfully.
12. Daytime/Night time modes - I need to validate across all, but I know multiple have tried to integrate this. I do not think any have integrated without a bug. I feel like the ones that are likely to get this right first are Teyes and Dasaita since they are actively developing their UIs. Since these are all android based, I feel like all will have an android setting to dim the display even though the color scheme may not change.
I'm really leaning toward the Teyes because if I imagine myself driving, it looks like the easiest interface to use and they are actively developing. When looking at default display, it looks like the most 'modern' design also.
In case someone else reads this thread trying to figure all this stuff out, XM and HD radio integration may differentiate these units also. I know it doesn't work on some but I don't use either of those so it isn't important to me.

I'm mainly responding to my own post in case someone else is considering a T'eyes unit. I purchased one and I highly under estimated what is involved with getting these units to work. The T'eyes cc3 in my car may go up for auction - just too much of it is unusable.
Note that if you do not like tweeking your cell phone, you might not like these units to begin with - don't expect they'll just work out of the box. Consider hours if not days to configure these things. Also, look at the back of the units - this one came with a 'Toyota" harness which is a bunch of wires to convert all the cables in the back. And it isn't a single harness of wires - it's multiple bags of cables that you have to pick and choose from. You have extra cables and I'm pretty sure the set is missing cables. My car has 2 cables where I only have one adapter that matches them in all harness wiring. So one is unplugged. I have no idea what each cable from my car is used for. But most of the wires only have a single place they can connect in the primary harness. It's all a confusing mess even though I think I have 90% connected to the correct spots.
Not all units are made this way. There is going to be something converting the cables, but some units have some sort of box on the back that has all the cabling converting done for you - so it looks like the cables from the car attach into the unit directly. After my harness was attached, I did not have cables that match everything coming from the car. I feel like that is why things like my my surround cameras do not work. I also have no back up camera working now. That is a pretty big deal.
Also, car play isn't all I thought it would be. It seems to only mirror Apple written apps to the device. I can install apps onto the unit and connect to my phones hotspot, but the connection is very flaky. Unless you are willing to connect the unit with its own sim card, you may be severely limited. I wanted to be able to stream youtube and such while making a weekly 90 minute drive I make. Well, this just doesn't happen because half the time the unit will not connect to my hotspot. It usually connects within 30 minutes of me driving, but I haven't found a reliable way to get it to connect to the hotspot. Usually I'm driving with my phone playing through my phone speakers because audio streaming won't work with wifi/hotspot.
All in all, I wouldn't purchase this again. If I were going to attempt again, I'd go with one of the models that removes the 'harness' from the equation.