Wiring connection to Radio R / CD Changer R41 (through KW 44/06), checking

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

Switch radio R off.

"Chorus"

Press CC/CD button on radio R and at the same time, switch radio R on.

"Concert"

Press CC button on radio R and at the same time, switch radio R on.

"Symphony"

Press station button 4 on radio R and simultaneously switch radio R on and hold down switch-on button.

All

NOTE:

Data wire from radio R to CD changer R41 is not checked.

Wire connection OK

Indication on radio display:

"CDC CONNECTED"

Wire connection not OK

Indication on radio display:

"NO CDC"
Check electrical connector at radio R.
Repeat wiring check and if not OK, check wire connector according to wiring diagram → Electrical Wiring Diagrams, Troubleshooting and Component Locations.