Audi A6 C5 Bose Door Speaker and Tweeter 4B0035411A (Item #320098)
Audi A6 °C5 Bose 97-01 Single DIN Car Radio Installation Kit with Steering Wheel Remote Control Adaptor – Connection Cable, Black Radio/Antenna Adaptor: Amazon.de: Electronics & Photo
98 99 00 01 02 03 04 Audi A6 C5 AMP Bose Amplifier W/ Bass Sub Box | eBay