Audi A6 C6 facelift (2008-2011) Most data bus circuit, late production

DATA BUS ON BOARD DIAGNOSTIC INTERFACE (ABOVE GLOVE BOX) DIGITAL SOUND SYSTEM CONTROL MODULE (LEFT REAR OF LUGGAGE COMPT) DVD PLAYER, CD CHANGER INFORMATION ELECTRONICS CONTROL MODULE 1 LWL IN LWL OUT NCA WIRE RADIO TV TUNER