2011 Audi Q5 S-Line - MMI 3G High

I can't get it to even detect aux/get any audio feedback from input devices other then the usual car sounds and stock radio AM/FM/Sirius.

Came from the dealer with an MMI to iPod cable with an adapter on that to work with modern iPhones (glove box port), no aux detected but it charges the phone. I bought an MMI to iPhone cable and tried that in the glove box, no aux detected but again it charges the phone. Enabled aux via green menu, reset the car/radio, tried it all again. Nothing detected.

At this point I didn't think much of it since I was going to swap the radio anyway, fast forward to after I've installed this android system and I've done this on everything from 2010-2019 Subaru, Impala, Altima without problems. Install goes smooth, wireless and wired (wired through USB connection that came with new head unit) car play work for Waze/etc. I even got the radio controls by the shifter to work to navigate the screen if I didn't feel like using touch controls. But no audio, no audio from Waze or Spotify via carplay.

I try all the cables again, I'm confirming there's still no aux input detected via the stock radio which I still have access to via pass-through on the new radio. All the stock radio FM/AM/Sirius audio still comes through no problem. I just cannot anywhere near aux input working.

I'm at a loss, not really sure what to do from here, I thought the new radio would be connecting to the audio via one of the cables on the harness and it would go around the glove box connector but I even tried hooking up the additional aux out from the head unit to that glove box compartment as well and nothing works. I don't understand how I can still have the stock radio output coming through with the new head unit but when I switch to carplay no sounds output. Switches to factory backup camera when I put it in reverse, etc. everything else working as expected.

Any advice greatly appreciated, I am happy to tear apart the dash and get back into it for any recommendations.

 

If you do have MMI 3G High, then the AMI port in the glove box is just that, a port. All the wiring in it runs back to the J794 MMI control module, the thing in the dash that says Audi multimedia. The AMI port does not connect to the radio, technically.

The obvious starting point is scanning for codes and seeing if the car is already saying there's issues to be addressed. Only when the car is clean of known issues that might be relevant, then you move on to looking for other things.

Sounds like you've only tried AMI cables for 30-pin Apple, and with a phone? Have you tried any other AMI cable? Basic AUX (3.5mm analog) or USB (with just a USB stick)? Do other sources under Media category work? SD card slot?

 

Thanks for the reply, I have scanned for codes, nothing to be found. No luck with basic AUX either. I will try some .mp3/.wav songs on an SD card and USB stick tomorrow. I did find another post https://www.audiworld.com/forums/a4-.../#post25885870 mentioning another thread https://www.audiworld.com/forums/a4-.../#post25879950 that might help as well but I need to check the connector layout I'm working with again, I remember for sure the one coming from the car is missing a 1/4th segment.

From my understanding this year this model should have aux working stock, or at-least after being enabled in the green menu, so I've been wondering if it's just a bad port at this point.

 

If this is a US model with navigation, it definitely had a working AMI port in the glove box.
Be careful in the green menu. Never change anything with recording everything. There's no reset button for if you mess something up and don't know what you changed. There's no need to be in there for AMI operation. The only thing I've ever changed in it is to bring down the maximum start up volume.
Also, knock off AMI cables commonly don't work well. I only have actual Audi originals.

 

So I wouldn't suggest this because you can obviously brick your radio but if you google "Audi NAR MMI 3G High (HNav) / 3G Plus (HN+) Software" the first result has update files that I was able to use through the red engineering menu via sd card. It said 5 were available, started the updates, it boot looped on the last one for "MulOC/Main/App" so I cancelled out of it mid cycle by pressing the Return button and was able to abort that final update and finalize/diagnose instruments after, followed by one more reset. Now magically the aux is available and it works through the internal harness from the new head unit to the car without utilizing the AMI port at all. No other issues have cropped up since, I still have full functionality. But that seemed to be the missing link. I finally have aux input through the new head unit.