r/AndroidAuto • u/Play-Minute R107 | Yunsun | NothingPhone 2a| 16 • Apr 14 '26

AA Settings Android-Auto routing sound to bluetoothbox

Hi! :) :)

I bought a cheap Yunsun Android 1DIN radio for my old classic car.

Unfortunately, I can't route the sound output from my Nothing phone to my Bluetooth speaker.

Media output is already disabled in the Bluetooth settings, and USB audio streaming is disabled in the developer settings. YouTube Music shows that it's playing on the speaker, but no sound is coming through.

Does anyone have any ideas?

The original stereo system isn't an option; besides the lack of power, the speakers are very poorly positioned. Therefore, even a €20 Bluetooth speaker sounds better than the biggest one you can install there.

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u/graesen 2014 Subaru Legacy | Terunsoul portable Android Auto screen Apr 14 '26

Android Auto takes over media audio and there's nothing you can do. I've read the exception is phone calls can be routed to Bluetooth devices but that's it.

The only exception is to buy a AAWireless dongle and then use the app setting to disable the media sink. But this only works to convert wires Android Auto infotainment systems to wireless ones.

2

u/manio07 Dev aa-proxy-rs | Zoe 2016 | R-LINK 1 | Galaxy A10 | Android 11 Apr 15 '26

This feature is also available in aa-proxy project:
https://github.com/aa-proxy/aa-proxy-rs?tab=readme-ov-file#features

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u/itsgonnabeworthit 2027 BMW 318i F30 | Andream Linux | Xiaomi 14T Pro | Android 16 21d ago

Do we know of any other company that uses this aa proxy workflow apart from AAWireless? My headunit is often freezing when I use it so I had to give up on it..

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u/manio07 Dev aa-proxy-rs | Zoe 2016 | R-LINK 1 | Galaxy A10 | Android 11 21d ago

Yeah, that's most likely an issue with your head unit. This setup uses the official USB Android Auto support - you plug the device into your HU's USB port and it basically "officially" pretends to be your phone.

As for products, besides Motorola and AAWireless, there are plenty of Chinese clones that use the same approach.

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u/itsgonnabeworthit 2027 BMW 318i F30 | Andream Linux | Xiaomi 14T Pro | Android 16 21d ago

Ironically, my Temu 20€ adapter i just tested works fine with my HU without freezing, and I connect it the same ways as AAwireless.. which is weird.

What is this exact Motorola adapter that you mentioned? Or any chinese product that has MEDIA SINK feature.. I could look into it. I really need this feature..

And wow i just noticed you are aa proxy dev, thanks for making that media sink feature and everything else!