Инфа для жаждущих линейников на наших блау: Тут нашел на просторах англицких правда на мондеофорумах. Они выяснили расблюдовку пинов:
Особо интересен коннектор C pin 4 и 10
Connector A (C517/C518)
Speakers (C517)
Pin 1 Right Rear + (brown/white)
Pin 2 Right Front + (purple/white x2)
Pin 3 Left Front + (white x2)
Pin 4 Left Rear + (brown/green)
Pin 5 Right Rear – (brown/blue)
Pin 6 Right Front – (orange/white x2)
Pin 7 Left Front – (white/brown x2)
Pin 8 Left Rear – (brown/yellow)
Power (C518)
Pin 9 CAN + (blue/white)
Pin 10 CAN – (purple)
Pin 11 Keycode Ground (black/blue)
Pin 12 Ground (black/blue)
Pin 13 Alarm Sense (From GEM) (yellow/grey)
Pin 14 Illumination (not used)
Pin 15 Battery + (From F72) (brown/red)
Pin 16 Ign. Sense (Accessory) (From F69) (not used)
Connector B (C520)
Pin 1 Mono + (not used)
Pin 2 Sw A+ (Switched Output (On when stereo is on) - Used with Rear Seat DVD's or 3rd party amplifier switch) (green/purple)
Pin 3 Aux L+ (CD Changer) (not used)
Pin 4 Aux R + (CD Changer) (not used)
Pin 5 PTA (Phone Mute) (not used)
Pin 6 SWC (Steering Wheel Controls) (grey/yellow)
Pin 7 Mono - (not used)
Pin 8 SWC Gnd (Steering Wheel Controls) (blue)
Pin 9 Aux L – (CD Changer) (not used)
Pin 10 Aux R – (CD Changer) (not used)
Pin 11 Rev Sense (Used for Navigation) (not used)
Pin 12 AVC - Speed signal for Auto Volume Control (not used)
Connector C (C519)
(NB: I believe several of the descriptions here are incorrect - I think most of them are for the USB socket in the glovebox, but I didn't follow the wiring round the car to check this)
Pin 1 RSE L+ (Rear Seat Entertainment) (green)
Pin 2 RSE R+ (Rear Seat Entertainment) (not used)
Pin 3 Mono 2 + (brown/red)
Pin 4 Sub W + (not used)
Pin 5 Aux 2 L (Glovebox Aux Socket L) (white/purple)
Pin 6 Audio Gnd (black)
Pin 7 RSE L – (Rear Seat Entertainment) (grey/yellow)
Pin 8 RSE R – (Rear Seat Entertainment) (not used)
Pin 9 Mono 2 – (blue/red)
Pin 10 Sub W – (blue)
Pin 11 Aux 2 R (Glovebox Aux Socket R) (yellow/blue)
Pin 12 Mic. (brown)