Check wire connection between radio and CD changer
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Switch off radio.
"Concert II" radio:
- Press the CD button on the radio and switch on the radio at the same time.
"Symphony II" radio:
- Press the "4" button on the radio and switch on the radio at the same time, keeping the ON button pressed in.
All models:
1. Wire connection OK
Indication on radio display:
"CONNECT"
2. Wire connection not OK
Indication on radio display:
"NO CDC"
- Check electrical harness connector at CD changer.
- Repeat wiring check and if not OK, check wiring connector according to wiring diagram.
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations, Cabriolet