I have an Audi A6 avant from 2007 with the Bose surround system. I bought it used and it has this problem that almost no speakers work. I used an OBD and found that I have a permanent disruption on the bass speaker in the fron and all the speakers rear and front. The only ones that work is the bass in the rear, the subwoofer and 1 speaker in the driver sida door. Anyone knows what this could possibly be? Im really happy with the car except that the audio sucks at the moment.
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