Audi A4 B5 Avant Rear Door Speaker 8D9035412B | eBay
right a4 b5 rear speakers not working help | Audi-Sport.net
Audi A4 B5 - How to connect rear speakers and subwoofer?
tomzz Audio 4003-000 Speaker Installation Set Compatible with Audi A4 B5 A4 B5 Avant Front Door 130 mm Coaxial System TA13.0-Pro: Amazon.de: Electronics & Photo