Failure 00469 - Databus Infotainment


New Member

2011 S3 8P, RNS-E with Bose-Audio and AMI

since a few days I notice my sound is getting weird.
The volume doesn´t stay and gets louder and louder from time to time. This could be due to the mic maybe, who knows.

The main problem is, the sound seems to switch between mono and stereo via seconds ?! I´m not already familiar with this failure and just got it via hooking up the car to "CarPort".
Could this be a faulty amp ? Or a faulty AMI ? The failure also continues when I switch from Tuner to AMI (USB). So the source seems not to be the problem :-(

Thanks in advance ! :-(