display AUDI A4 2002 B5 / 1.G Radio System General Information
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Checking wiring between radio and CD
changer
- Switch off radio.
"Concert II" radio:
- Press CD button on radio and switch radio on at
the same time.
"Symphony II" radio:
- Press button "4" on radio and switch radio on at
the same time, keeping the ON button pressed
in.
All models:
1. Wiring OK
Indicated on radio display:
"CONNECT" Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
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2. Wiring not OK
Indicated on radio display:
"NO CDC"
- Check electrical connections at CD changer.
- Repeat wiring test and, if the wiring is not OK,
use wiring diagrams to check wiring.
Electrical Wiring Diagrams Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication