Hi,
Yeah i was just reading your other thread on the theft of your RNS 510 - man, ya have my sympathy - damn scum everywhere.
As you say it wouldn't be so bad if they just took the unit without breaking the window and damaging the wiring at the same time.
Ok i have been working out the pinout from the ElsaWin wiring diagrams and RNS510 pinout.
On the 12 pin connector as you have photo'ed.
Pin 1 is Aux Left input
Pin 2 is Ground
Pin 7 is Aux Right input
The cable which has been pulled is actually a stereo audio cable and is not carrying power.
So Pin 2 is definitely the black ground wire. As evidenced by the fact it is heatshrink'ed and is comming off the screen of the audio cable.
According to VW diagrams the other 2 wires should be green and yellow - but hell i've found that sometimes they don't follow the factory spec for colour coding. In your case these are brown and white.
Unfortunately i therefore can't tell you which is left and which is right - but just try it, the absolute worst that will happen is left and right will be back to front when you are playing from the aux input...just swap them round if thats the case.
Diagram is below, for reference J503 is the media player (RNS510 etc), J650 is the MDI media interface.
T12f is the connector in your photo, where /1, /2, /7 refers to the pin number.
