2002 AUDI A4 CD changer

Downloaded from www.Manualslib.com manuals search engine 91-41


6 -
Radio system antenna
7 -
Antenna amplifier
8 -
Speakers
9 -
Radio
10 -
CAN Bus (Infotainment)
11 -
CD Changer Unit
In glove compartment
12 -
Telephone/Telematics Control Module Under front passenger seat
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-43

Multi-pin connector assignments on Satellite
Radio -R146-

Note:
Terminals which are not listed are
vacant/unassigned.

A - Multi-pin connector, 8-pin
B - Multi-pin connector, 8-pin
C - Connection - Satellite Tuner Antenna (brown) 1 - CAN-Bus High (Infotainment)
2 - CAN-Bus Low (Infotainment)
3 - CD-IN L (CD Changer Unit)
4 - CD-IN R (CD Changer Unit)
5 - NF - Ground (GND) (Radio)
6 - NF - left (Radio)
7 - NF - right (Radio)
8 - CD Ground (GND) (CD Changer Unit)
1 - Terminal 30 (B+)
2 - Terminal 31 (GND)
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-48

CD Changer Unit -R41-, removing and
installing


Special tools and workshop equipment
required

Removing
Radio release tool T10057
- Open glove compartment.

- Push clips of radio release tool T10057 into front of CD changer as
illustrated.
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-49

- Pull CD changer out of installation slot.

- Disconnect electrical connection.

- Pull out release tool from CD changer - to do
this, press in locking tabs on CD changer.

Installing

- Reconnect electrical connection.

- Slide CD changer into installation slot until it
engages.

- After installation, it is essential that the wiring is
checked Page 91
-50
.
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-50

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

Downloaded from www.Manualslib.com manuals search engine 91-51

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