Related
New to this forum. Hope it is in the right place. I tried to search for anything that matched and did not find anything similar. I have a Tocado 7.1 Android Chinese Headunit I purchased from ebay. My FM stopped working a while back. There is static but no stations attempt to come in. Search just runs through the whole dial and then starts over with no stations found. I have tested the antenna with the OEM radio and it does work correctly. I can get AM but it is not strong. I have tried to change the region to no avail. If anyone has any ideas, I would appreciate it.
Do you have power injector adapter with the chinese head unit?
I’m a noob. Not sure what that is.
I had a similar problem on my Subaru
I didn't realize that there is a small amplifier connected to the antenna (probably very close to the antenna, which in my case is part of the rear window on the tailgate).
This needs to be supplied with 12V otherwise you get hardly any (or no signal at all) down the cable from the antenna.
I bought a Subaru to ISO adapter kit, and one of the wires in the ISO plug is the antenna power. However my Xtrons unit, just has a wire from its ISO socket which doesn't connect to anything.
So no power was going to the antenna amplifier.
The solution is to connect the Accessory power going into the head-unit, to the antenna power wire.
Ideally connect it on the side of the fuse that connects to your head-unit, so that the power is then protected by the fuse.
Warning.
Make sure you are applying the Accessory power to the correct wire, and that your antenna amplifier requires 12V
What I had to do, was to reconnect my old CD / Radio unit, and measure the voltage on the pin for the antenna amplifier.
On my old CD / Radio unit, when I switched to the radio, 12V appeared on one of the pins on the plug into the back of the radio.
I double checked the pin on that Subaru radio plug, against a pinout I found on the internet, to confirm it was what people thought was the antenna power pin.
Once I was fairly certain that I knew which pin it was (and that the wire from the ISO socket on the xtrons ISO socket labeled something like "Auto Radio" was the same connection), I applied 12V to that pin via a amp meter (actually a multimeter on its millamp setting), and I confirmed it wasnt taking loads of current.
As I'm an electronics engineer I have several multimeters including the old style analog meters which have a needle. The analog ones are great for testing this sort of stuff, as you can see by briefly tapping the connection if its taking a lot of current or not.
In my case the meter hardly registered, as the antenna amplifier takes less than 50 milliamps.
Anyway, finally checked that the radio was now working on the new head unit (Xtrons GS PX5 Oreo), and it works working fine both on AM and FM.
Thanks for the reply. I have a 2006 F 150. There is no amplifier on this vehicle. I should have shared that originally the radio worked fine. I usually just use the BT and stream music from Pandora. One day after several months, I decided to turn on the radio because I was in a dead zone. To my surprise, the FM just had static. Seek found no stations and I tried to manually tune to a known station and it did not come in. There is no change in the sound of the static when a station is at the setting. I also reconnected my OEM radio to the antenna to be sure it was not the antenna. It worked just fine.
OK.
I didn't think I my Subaru had antenna amplifier... But I does
Apologize if this is the wrong forum to post this in, but I just installed an Android 8.1 head unit in my car in the USA, and I get great FM reception, but I can't get reception for any AM stations. I disconnected the unit and reconnected my old radio to make sure nothing had changed in the car, and I still got good FM and AM with the old radio, so I know the antenna is good.
Is there a setting in the radio for region (USA, Europe, China, etc) that could affect this? When I scan stations, it seems to be in the right range of frequencies, but doesn't stop on any, and I can't manually force it to a station that I know (950). Instead I can make it go to either 945 or 954. I have searched through all of the menus that I can find, and can't find anything that would allow me to see or change the region.
Thanks in advance - Paul
Update on this issue - I was able to get to the menu to change the radio region:
Car Settings:: About the Device (passcode 8888):: Radio
It was defaulted to Europe - I changed it to America 1 and America 2 which at least allowed me to directly tune to a couple of strong AM stations that I know, but I still had no reception. Everything else about the unit works well. I am trying to get them to send me a replacement thinking it is something in the hardware, but please let me know if anyone has any other ideas on things to check.
I have this problem too. Great FM reception, VERY poor AM reception. I've tried all country codes (Australia is not available). I've asked vendor for a solution. Still waiting.
Did you get a solution?
I had this too until I realized that my car has a built in car antenna amplifier (most cars now do) and it needs to be powered. Without power to it, you'll barely get reception. So I connected the antenna amplifier to the powered antenna output from the head unit and that improved it some, but still it wasn't great. Then I checked the voltage from that wire I found that the head unit only puts out 10.6 volts instead of the required 12. So I hooked the power antenna to the same 12V power coming from the car that feeds the head unit and presto, now I get normal radio reception like I used to.
This constantly amazes me, why do so many people not understand about the aerial amplifiers used on most cars now? When you swap out a manufacturer specific unit, make sure all the wires are connected, they're there for a reason!
yes, but most people don't realize that the lead from the head unit that says ANTENNA is not suitable to power the antenna. You must use the 12V power supply coming from the car to power the antenna amp.
It varies with the head unit, many do put out the full battery voltage on the antenna feed wire (ours does) but obviously some don't, your fix is correct for those that don't. The issue is that everyone seems to just leave the amplifier wire disconnected and wonder why it doesn't work.
Mr.TT_NZ said:
This constantly amazes me, why do so many people not understand about the aerial amplifiers used on most cars now? When you swap out a manufacturer specific unit, make sure all the wires are connected, they're there for a reason!
Click to expand...
Click to collapse
I know this is an old post but I'm having this issue.
I'm actually little confused as to how to remedy this.
Any help would be appreciated.
Should I splice the blue ant wire into the power wire going to the radio?
I was under the impression the blue ant wire was for people who had a power antenna that raises and lowers when the radio is powered on.
Here's the radio I got for a 2005 Corolla.
US $195.00 20%OFF | For Toyota Corolla E120 E 120 BYD F3 2000 2003 2005 2006 DSP 4GB+64GB Android 2 Din Car Radio Multimedia Carplay GPS Navigation
https://a.aliexpress.com/_mPnUCX6
jnotgsure said:
I know this is an old post but I'm having this issue.
I'm actually little confused as to how to remedy this.
Any help would be appreciated.
Should I splice the blue ant wire into the power wire going to the radio?
Click to expand...
Click to collapse
The ANT wire of the head unit is intended as power supply for the car antenna. Not only the automatic extending antennas need a power supply, also active antennas.
So it depends on your installed antenna if you need to connect it.
Some active antennas doesn't have a separate wire for power supply. In this case you need a "Phantomeinspeiseadapter" (Google it). Espacially cars from VW group (Skoda, Seat, VW, Audi...) need such an adapter in combination with a 3rd party radio.
The idea is to power the antenna only if it's needed (your listening to radio).
Alternatively the antenna could get its power from the ACC wire. In this case the antenna gets power as soon as you turn on the ignition.
The B+ wire should never be used to power the antenna because this would drain your cars battery 24/7.
With OEM head unit the reception is fine. With the PX6 head unit the FM reception is quite poor. I have checked that the OEM amplifier gets power. I have tried one of those small "FM amplifiers" but it just made it worse.
So I am thinking about getting an external antenna like this one:
Eightwood DAB/DAB+ Antenna Car Radio Antenna Splitter: Amazon.de: Elektronik
Eightwood DAB/DAB+ Antenna Car Radio Antenna Splitter: Amazon.de: Elektronik
www.amazon.de
They seem to get good reviews at Amazon but I am curious to hear if anyone here been using it with a Chinese Android head unit and if it made any difference?
Thanks!
I use one on a Joying HU, It works great. FM is perfect, GPS is also spot on. DAB worked on my last HU but, I needed a new DAB box for this HU, so I didn't bother. The bit rate for DAB in the UK is shocking, streaming is the way forward for good sound quality.
I’ve had one before and dab and fm radio worked perfect.
You should be able to get the oem aerial working properly though with this unit.
Have you got an adaptor for the antenna to go into the new unit or does the oem antenna cable just plug straight into the new unit?
The fm amplifier that you bought will make it worse because the chances are that your car will already have a factory fm amplifier.
ab1702 said:
I’ve had one before and dab and fm radio worked perfect.
You should be able to get the oem aerial working properly though with this unit.
Have you got an adaptor for the antenna to go into the new unit or does the oem antenna cable just plug straight into the new unit?
The fm amplifier that you bought will make it worse because the chances are that your car will already have a factory fm amplifier.
Click to expand...
Click to collapse
Yes, I have an adaptor for the antenna, from Fakra to DIN. I have tried to disconnect power to the OEM amplifier, and then I got almost no reception at all, so I guess the amplifier works.
But I have realized that DAB+ sound quality isn't very good, so now I am hasitating to buy an external antenna. And just stream music and radio from apps.
If you get a good external antenna the sound will be better on dab. I use dab all the time.
It’s one of these that you need to get your FM working properly with your factory antenna https://www.ebay.co.uk/itm/353322093865 you connect the blue cable to the blue cable that comes out of the back of the headunit and it powers your factory antenna(although you should have got one of these with the headunit).
I bought similar antenna https://www.amazon.de/gp/product/B073R8KW7F to try to get better reception of DAB+ (instead of windscreen-sticked antenna), and for DAB it made so much better reception, so i have now DAB+ reception even in my underground parking place %) Cannot say though about FM - i had no problems with OEM antenna before, and new antenna didn't make FM reception better. But as i don't use FM anymore (DAB+ converage in my area is good, and with new antenna i don't have reception problems in other areas either, all FM stations i was interested before, are available over DAB), i compared audio quality DAB+ <-> online radios. Yes, the quality of online services is mostly better, but:
1. while driving, with all exterior sounds (tire noise, air whizzing @ high speeds, noise form other cars), i barely hear the difference.
2. hearing online radio with e.g 128kbps, will eat ~60 MB per hour. If it is OK for you - ignore it.
3. The 3G/4G coverage (at least here, in Germany), isn't perfect - i had already 3-10 minutes of "no internet" while driving, but, surprisingly, DAB was available there.
4. with proper DAB+ software you will get additional services, like possibility of radio recording, or timeshifting (personally me use it often while hearing some news and got distracted with road traffic).
So, after using similar antenna (same manufacturer, but with aerial rod) during last year, i have never had problems with DAB receiving (neither with FM, but i had no problems with FM reception with OEM antenna either).
Hello, I recently bought a Teyes cc2 plus for m'y Mazda CX-7 2009 and I installed it. Everything Is working and plugged in except there is no sound. I tried to do a Factory reset and a canBus update but it doesn't repair it. Can someone have an idea on how to make it work properly and what IS the problem? Thank you very much
angelus2511 said:
Hello, I recently bought a Teyes cc2 plus for m'y Mazda CX-7 2009 and I installed it. Everything Is working and plugged in except there is no sound. I tried to do a Factory reset and a canBus update but it doesn't repair it. Can someone have an idea on how to make it work properly and what IS the problem? Thank you very much
Click to expand...
Click to collapse
Hi, if Radio only has no sound probably is wrong chip settings in hidden menu, try changing to other IC type - like 7686, sx7380 etc.
If not restored upgrade new android version (find similar software here on forum for your devcice and upgrade from USB)
Thank you for the response. Do you know how I can access this hidden menu to see if this is the problem?
I have a grey connector on the loom that I can't connect to anything and a blue wire that is named AMP-C.
Do I need to connect those for the sound to work?
You must connect antenna cable - that black wire one with fat belly at picture nb. 4 along with gps and dab black wires (if they are for that - with gold ending), and blue and black for amplifier I think and harness cable / this wires in a lot
Can you show me back end of a radio what looks like ? Where ports and connectors are.
That's all I got.
Connect all wires properly and plug fm antenna in device, all wires as I see have designation what is for, connect them all in ports where they belong. Turn device on and go inside hidden menu of device , with pin 8888 (or 0000 or what number is for your device and once in take photo of that menu , if has RADIO MENU inside take photo of that aswell).
I already did that and try a lot of things but nothing works. There is a developer menu and inside there is nothing about the sound or radio. Same for the factory menu. I tried to connect the blue wire named "amp-con" with the red wire named "ACC" like the vendor on Aliexpress said but it doesn't work.
angelus2511 said:
I already did that and try a lot of things but nothing works. There is a developer menu and inside there is nothing about the sound or radio. Same for the factory menu. I tried to connect the blue wire named "amp-con" with the red wire named "ACC" like the vendor on Aliexpress said but it doesn't work.
Click to expand...
Click to collapse
Do you have phisical amplifiers in car (connected to audio)? If do unplug it and start machine and see if helps (if does help amp is too high and powerfull for your device).
Maybe some antenna like GPS antenna is faulty and is interfering with device, it happened to me once. I bought a new gps antenna and radio and sound works now. To test this simply disconnect GPS antenna and plugg FM antenna and try it without gps antenna, if works that is the case here.
Are you connecting to an external amp? If so you need to be able to turn on that amp with the amp trigger wire (blue wire)
There is an amplifier inside the car yes. It's in the trunk a bose amplifier. What's weird is that when the original radio is connected it only uses the big connector between the car and the radio.
angelus2511 said:
There is an amplifier inside the car yes. It's in the trunk a bose amplifier. What's weird is that when the original radio is connected it only uses the big connector between the car and the radio.
Click to expand...
Click to collapse
Is it a factory amp or aftermarket? Factory amplifiers usually use the SPEAKER level inputs
It's the factory amp. Here more pictures about what I have for wires.
My guess is that your amp isn't getting a "turn on" signal. Go to FACTORY SETTINGS and make sure you have "with amp" (or something like that) checked to YES.
Some factory amps are turned on through CanBus and some are simply turned on with a trigger wire. Not sure which one yours is... you will have to investigate, but it sounds like the amp is off.
I have already set the amplifier power supply to Yes inside the factory settings but no sound again. Could it be the canbus brown box that is the wrong one or do you think this is something else.
angelus2511 said:
I have already set the amplifier power supply to Yes inside the factory settings but no sound again. Could it be the canbus brown box that is the wrong one or do you think this is something else.
Click to expand...
Click to collapse
Reduce amplifier level and see if helps, some amplifiers are to strong for aftermarket headunits. Try with low audio levels first. Just to see if works.
Anton TNT said:
Reduce amplifier level and see if helps, some amplifiers are to strong for aftermarket headunits. Try with low audio levels first. Just to see if works.
Click to expand...
Click to collapse
I don't know how to do that in the settings of the radio. What do you mean by "reduce amplifier level"?
angelus2511 said:
I don't know how to do that in the settings of the radio. What do you mean by "reduce amplifier level"?
Click to expand...
Click to collapse
Do you have DSP effect in headunit ? Turn to lowest levels, then restart machine (and remeber old setting in case you might turn back)
I'm going to check that in a minute
No there isn't dsp effect in the menu. In this video you can see that the only thing that's need to be connected except the rear camera(brown + acc) is the big red connector. I have the same car has him. His car have the bose system too. The only thing that he have different is the canbus decoder that is named MZ-SS-06 when mine is RP5-MZ-002. Could it be the real problem?
Hi!
I recently bought a Junsun V1 Pro 4GB + 64GB. And I got, like many other problem with microphone quality. Thanks to (https://forum.xda-developers.com/t/...ooth-phone-calls-junsun-v1-pro.4166471/page-3) I solved that problem.
And in the process i got new firmware from junsun and updated.
And then i connected headunit in car again and then FM stopped working. (Which was working perfect for a couple of weeks when troubleshooting bad microphone quality)
When starting the unit and then radio app there is a brief noise from radio that fades away quick. The channels are set to 0. And nothing happens if i try to scan for new.
I have triplechecked the connection to antenna, I measured the adapter for cable breaks.
I have tried a ton of settings in 8878.
I'll post screen of current settings, please help me troubleshoot this!
f3zz said:
Hi!
I recently bought a Junsun V1 Pro 4GB + 64GB. And I got, like many other problem with microphone quality. Thanks to (https://forum.xda-developers.com/t/...ooth-phone-calls-junsun-v1-pro.4166471/page-3) I solved that problem.
And in the process i got new firmware from junsun and updated.
And then i connected headunit in car again and then FM stopped working. (Which was working perfect for a couple of weeks when troubleshooting bad microphone quality)
When starting the unit and then radio app there is a brief noise from radio that fades away quick. The channels are set to 0. And nothing happens if i try to scan for new.
I have triplechecked the connection to antenna, I measured the adapter for cable breaks.
I have tried a ton of settings in 8878.
I'll post screen of current settings, please help me troubleshoot this!
Click to expand...
Click to collapse
Hi, first things first...
Antenna. It must be connected to a mass (zero) of car in order to work so check that first.
Second... Change Radio chip in system settings and see if it is misconfigured. TDA 7851 is the common one used in this devices.
P.S. in image I see that RDS is OFF turn this ON !
Anton TNT said:
Hi, first things first...
Antenna. It must be connected to a mass (zero) of car in order to work so check that first.
Second... Change Radio chip in system settings and see if it is misconfigured. TDA 7851 is the common one used in this devices.
P.S. in image I see that RDS is OFF turn this ON !
Click to expand...
Click to collapse
Hi Anton, thanks for engaging with me!
When you talk about the mass connection, do you mean at the antenna side or on the head unit?
I'll try the TDA 7851 with RDS On, but i've already tried a ton of combinations in this menu since problem started.
I thought that reset to factory would also reset these settings but unfortunatley it only reset android.
Anyone know how to get these settings to factory?
Antenna works in that way that when jack is connected into antenna port mass of the car / or units mass - metal casing gives contact. But if it is not antenna case here and double checked, you can also check for a faulty GPS antenna if you have one , if faulty it can freeze radio , I had this problem on my old device. Go to GPS antenna test app and see if signal is constant with at least three satellites if not disconnect GPS antenna from unit and open radio app, see if works without GPS antenna. If yes, replace GPS antenna, buy new one.
f3zz said:
Hi Anton, thanks for engaging with me!
When you talk about the mass connection, do you mean at the antenna side or on the head unit?
I'll try the TDA 7851 with RDS On, but i've already tried a ton of combinations in this menu since problem started.
I thought that reset to factory would also reset these settings but unfortunatley it only reset android.
Anyone know how to get these settings to factory?
Click to expand...
Click to collapse
For IC Type values i only have these - ST 7786, NX 6686, Si 4702, QN8035,474X, 7708, 7703
And I have now tried all of them, with RDS ON.
Anton TNT said:
Antenna works in that way that when jack is connected into antenna port mass of the car / or units mass - metal casing gives contact. But if it is not antenna case here and double checked, you can also check for a faulty GPS antenna if you have one , if faulty it can freeze radio , I had this problem on my old device. Go to GPS antenna test app and see if signal is constant with at least three satellites if not disconnect GPS antenna from unit and open radio app, see if works without GPS antenna. If yes, replace GPS antenna, buy new one.
Click to expand...
Click to collapse
Ok, I quadruple checked the antennaport mass and checked GPS on which i have aprox 30 satellites.
Something with update changed your RADIO chip consult with seller or gaver of update
Problem solved now! I reached out to seller. And it turns out that "Radio" has to be in "Menu Icon" in order to function properly. (8878 Menu)
I removed radio since I wanted the button to open phone. Which I didn't got working anyway.
Thank you for helping!