The reason I ask:-
had taken out the original concert tape player and fitted an aftermarket nakamichi unit, but it only lit amber or green.... I wanted red.
got the chance of a concert II cd player from a TT (02) on the underside it says C5/TT so I was sure it would work in my 01 A6 (C5)
fired it in and sure it works but it doesn't illuminate the buttons, not very good at night.
I decided to dig out my old concert unit and it looks like there are a few pin out changes (oops should have looked first)
the illumination pin on my C I doesn't exist on the C II.
Anyone got a pin out diagram for a 2002 TT? or would know what has changed
from the top of my concert 1
6 switched +
from the top of my concert 2
2 no description or pin
3 no description or pin
6 no description BUT has pin
does that make any sense
Also any idea what the extra aerial on the back FAKRA style thingy
Hope someone can help
2001 A6 Avant