Audi a6 4b avant 2.4i 121kw bj 2000 active sub rear speakers no longer work?
Hello, I have an Audi A6 Avant from 2000 and have an active subwoofer and a different navigation system installed which does not have a connection for the red cable (I think this is for the regular subwoofer which is connected to the rear speakers). Does anyone know which adapter there is or what option…