Help with nexus 7 headunit - Nexus 7 Q&A, Help & Troubleshooting

So I have been trawling around the Internet looking for the most cost efficient way to install my nexus 7 as a head unit.
Will this work?
What I want to do is fabricate a double din mount with a recessed single din. The nexus will sit in front of the single din headunit and be attached via low profile magnets. The tablet will charge from a wireless charging station. Behind the double din mount.
I will hid in the free space a usb hub with Bluetooth, dac I will extend one of the usb ports round in to my arm rest.
I will be using nfc to force tether my phone to my
Tablet.
I great at fabricating. But I'm very rusty at electronics and the working dynamics off how this will all work together.
I am assuming that the tablet will transfer and recieve data via bluetooth attached to the hub? (Is this possible).
Is there anything else I need?
P.s. I don't want to have to go down the line of purchasing and amp and want to use the orginal harness to transfer sound so that when I go to sell the car it's a easy swap out.
I hope this makes sense any help would be greatly appreciated
Regards

Related

USB Front Port On Car Headunit compatible with Nexus S?

I was at the car stereo place and found nearly every headunit with a USB port in the front saying that it is compatible with an iPod or iPhone. Question is, have any of you guys tried hooking it up to a Android device? Does it charge? Will it fry my cellphone? I'm leaning towards a Kenwood headunit but just wondering if there are any precautions. Thank you
FastMhz said:
I was at the car stereo place and found nearly every headunit with a USB port in the front saying that it is compatible with an iPod or iPhone. Question is, have any of you guys tried hooking it up to a Android device? Does it charge? Will it fry my cellphone? I'm leaning towards a Kenwood headunit but just wondering if there are any precautions. Thank you
Click to expand...
Click to collapse
You should be fine. I doubt it would damage the phone as most smart phones have similar power requirements/charging methods these days. The iPhone's cables are just normal USB cables with a special plug on one end and an Apple logo so they can charge more. Most things labelled "For iPhone/iPod" work just fine on Android devices.
Anyone with a USB port on their headunit using a Android phone?
My Honda has a USB port for the stereo. It does not allow the me to use the phone to control audio through USB as this is not supported like it is on iPod (same with any Android phone, has nothing to do with Nexus S in particular) but it does work in Mass Storage Mode and allows me to control audio through the head unit.
All of this is moot anyway as the best solution is to use a car mount and connect through the 3.5m stereo out to the AUX input. I can then not only use Last.fm and Navigation sounds through the stereo, but also phone call audio gets passed through. It's pretty much awesome and makes me glad I did not spend the extra $1200 on the in dash GPS/touchscreen head unit with bluetooth.

Dash install noob - Any experts willing to advise?

I have a Nexus 7 (2012) that I want to do a dash install with. I would like to retain my head unit (already relocated) for audio, and I have a few questions.
I mainly want the following features:
-USB Tether
-Bluetooth OBD
-Airstream (or otherwise) phone calls from iPhone through Nexus
-WIFI backup camera
-Bluetooth keyboard?
From what I've been reading it appears Timur's ROM is the way to start. It looks like with an OTG cable and a usb hub I can easily do usb tether.
I have a bluetooth keyboard that has its own USB dongle, I'm wondering if with that dongle I can be connected to the keyboard and the obd transmitter simultaneously
I saw an app that was available years ago to support airstream, but it seems to have disappeared. Does anyone know a way I can have the audio/mic go through my nexus for phone calls while driving? (Right now I use Bluetooth through my head unit)
I found the following parts, is there anything I need to avoid? Or anything I'm missing?
Tendak (Pack of 2) Micro USB 2.0 On-The-Go (OTG) Cord Cable Adapter with USB Power for Cell Phone Tablets
ORICO MPU-5S Auto Universal converter car inverter 12V 5 port smart charger for iphone 5 5S Car Charger Adapter By AFUNTA
Turtle Beach Audio Advantage Micro II USB Analog & Digital Audio Adapter
I'm still trying to do more research on backup cameras, and the possibility of a dash camera. If anyone has any input on any of this I would greatly appreciate it! Thanks in advance and I look forward to being a more active member of the community!

Faster Charging with Android Auto?

So, my 2014 Kia Soul ! got a new map update that included Android Auto. I love the functionality, but the Soul only outputs .5 amps to the phone and it isn't enough to charge it, I slowly lose a charge while driving, about 5 percent in my 47 minute commute. I've been trying to figure out a solution and think I may have based on this thread.
https://www.reddit.com/r/AndroidAuto/comments/48e65c/way_to_fast_charge_with_android_auto/
if I were to get the same cable mentioned in there...
https://www.amazon.com/StarTech-3-Feet-Cable-External-Drive/dp/B0047AALS0
And then put a Micro USB to Type C adapter on the end, I'd get a faster charge and have Android Auto still work, right?
Anyone else think it's worth a try?
Got any other ideas?
I should update this thread, I got the cable mentioned, really good quality THICK cable. I hooked it up to 3 different chargers, it didn't make a difference at all. Guess I'll return it.
Anyone have any other ideas on how to increase the charging capability?
I'm also trying to work it out. Although I don't have Android Auto, I have a headunit which is AOA2 (Android Open Accessory, USB audio,) and has an apparent power output at 2A on the USB port.
With Google Maps and Play Music both on, I'm losing roughly 5% an hour driving.
Sent from my Nexus 6P using XDA-Developers mobile app
Good to hear someone else is looking at this.
I'm trying to figure out how to hack the actual port on this thing to provide more power, you'd think we could do 2.4a, right? Or at least 2.1?
I use Pioneer unit avh-x8700bt and my phone is charging during using android auto. I use nillkin flat usb c cable. In fact 1 hour drive gives 14-15% juice. You can Google for this unit specs to check what are usb details.
Wysłane z mojego SM-T815 przy użyciu Tapatalka
I don't think you'll be able to get faster charging with Auto - since it has to directly plug into your head unit usb, the only thing you can 'get' is the output from it. Not like you're changiner the lighter adapter where you can buy ones with different outputs.
masi0 said:
I use Pioneer unit avh-x8700bt and my phone is charging during using android auto. I use nillkin flat usb c cable. In fact 1 hour drive gives 14-15% juice. You can Google for this unit specs to check what are usb details.
Click to expand...
Click to collapse
Thanks, I'm not going to swap to an aftermarket HU though, the one in this car is fantastic.
teh roxxorz said:
I don't think you'll be able to get faster charging with Auto - since it has to directly plug into your head unit usb, the only thing you can 'get' is the output from it. Not like you're changiner the lighter adapter where you can buy ones with different outputs.
Click to expand...
Click to collapse
I should have explained, in the Soul, the USB plug isn't in the head unit, it is an easy to remove module in front of the shifter. I've taken them out before for other modifications, and the wires are easy to access. I'm just wondering if there's a way to modify it there to output more power.
RED ZMAN said:
Thanks, I'm not going to swap to an aftermarket HU though, the one in this car is fantastic.
I should have explained, in the Soul, the USB plug isn't in the head unit, it is an easy to remove module in front of the shifter. I've taken them out before for other modifications, and the wires are easy to access. I'm just wondering if there's a way to modify it there to output more power.
Click to expand...
Click to collapse
Hmmm, it almost sounds to me like:
Buy a higher output cigarette car charger, rip it apart - but then you'd have to jump the electrical straight to the car + solder the usb connection to it and then remount it?
Yeah, I was leaning more towards that direction of thinking.
Any update?
Here are my ideas (view picture), though there are some possible problems I can't confirm. I'm currently using the 2017 Chevrolet Colorado 8" Mylink system and my phone is a Droid Turbo. I just ordered a wireless charger so I should be able to test that idea in a few days.
imgur.com/gallery/8HUKHTA
TysonRios said:
Here are my ideas (view picture), though there are some possible problems I can't confirm. I'm currently using the 2017 Chevrolet Colorado 8" Mylink system and my phone is a Droid Turbo. I just ordered a wireless charger so I should be able to test that idea in a few days.
imgur.com/gallery/8HUKHTA
Click to expand...
Click to collapse
Number 2 is what I was looking into but I really hate trying to splice tiny wires like this.
I do agree that the end solution should be wireless, allowing us to use a quick charger of our choice and having a small USB Wi-Fi dongle that you can plug into your vehicles usb port.
Has anyone gotten anywhere with this? I can tell you that I have my Nexus 7 2013 Wi-Fi running in one of my cars with a Y-Cable. I have a 2.1 (actually QC2.0 but that doesn't matter,) charger plugged into the power side, and the data side goes into a powered USB hub. I actually intend to snip the power supply wires to the hub, so it can't drain the tablet no matter what.
I still ran into draining issues even after powering the hub, so I ended up using a cheapo microcontroller to keep the tablet charging for 20 minutes after the car goes off. This keeps the tablet topped-off. I'd be real curious if you could somehow trick a phone into quick-charging and data simultaneously.

Some Joying questions. Please help.

This is a Joying for a vw. Running android 8.
There is two usb connections at the back. Left and right.
The one marked 2.o (left one looking at the front) works with the DAB adapter and Zlink Apple car play. All is good.
Q1:
If i connect to the right usb the iphone then zlink wont connect. Why? (Im assuming its USB1.0) Can I use one of the zjinnova adapters to get carplay on this usb port?
Q2:
If i connect the DAB adapter to the right usb it works but the sound stutters enough for it to be annoying to listen to.
Anything i can do to help this? Im assuming its a data speed issue.
Q3:
Any tips on getting both DAB and Apple carplay to work?
Regards Kurt

Where to buy a replacement device cable

I have an Android head unit I received for free, but it's missing the device cable. The unit has a sticker on the back that says AC-9216B-2+16GB. I was able to figure out what pins were for the battery connection, ground, and accessory. using some clip leads I was able to get it to power up and I found a complete wiring diagram in the settings displayed on the screen. I just need to find the 16 pin connector to be able to use this unit. The clip leads barely hold on and fall off with the slightest movement.
I'll attach some pictures with the device info and the connector.
Any help for where to buy the device cable would be greatly appreciated. It came with the GPS antenna, the backup camera cable, the A/V cable, and the two USB cables. It was just missing the main cable that has the connections for the power, and speakers. It also came with a USB dongle that is supposed to add Android Auto.
I see a lot of posts about this type of unit (8227L) with instructions for how to unlock the bootloader and flash custom ROMs. So if I can find a cable, I should be able to make this unit work pretty well.
You can buy the cable from aliexpress just search for shops:
Carload
Podofo
Both sell 8227L devices and you can get the cables from them.
Sent from my MI 9 using Tapatalk
zetlaw01 said:
You can buy the cable from aliexpress just search for shops:
Carload
Podofo
Both sell 8227L devices and you can get the cables from them.
Click to expand...
Click to collapse
Thanks for the tip. It took a little searching, but I found the correct cable. If you search for "XY AUTO Android Solution Interface" They come right up. The power cable was only $1.82. I ordered two since I was paying almost $5 for shipping. Of course they will take a month to get here from China.

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