The 6 stack CD changer in the boot doesn’t work properly. It loads and swaps disc’s alright but doesn’t want to play them. Ordered a second hand one from Wolf Auto Parts in the US (http://www.wolfautoparts.com/)
Drop in replacement – AUDI A6 C5 4.2 – CD CHANGER w/CARTRIDGE 6 DISC – $138.84 USD delivered.
Unbolt and unplug the old unit, plug and bolt in the new one and we’re done. CD Changer code was 4B0 035 111A.