Page 48 of 82
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
Page 49 of 82
Downloaded from www.Manualslib.com manuals search engine 91-42
Multi-pin connector assignments on
"Symphony II" radio
1 -
Multi-pin connector IV, 10-pin, red
2 -
Multi-pin connector I, 20-pin - black
3 -
Radio fuse
4 -
Multi-pin connector III, 8-pin, black
5 -
Multi-pin connector II, 8-pin, brown
6 -
Intermediate frequency wire
7 -
Antenna connection (high frequency wire)
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 50 of 82
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
Page 52 of 82
Downloaded from www.Manualslib.com manuals search engine 91-44
"Concert II" radio unit, removing and
installing
Special tools and workshop equipment
required
Removing
Radio release tool T10057
- Push clips of radio release tool T10057 into front of radio.
Top L - top left
Top R - top right
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 53 of 82
Downloaded from www.Manualslib.com manuals search engine 91-45
- Pull radio out from instrument panel.
- Disconnect electrical connections and antenna
wire.
- Pull out release tool from the radio - to do this,
press in locking tabs on radio.
Installing
- Reconnect electrical connections and antenna
wire.
- Carefully insert radio into instrument panel and
engage in installation slot.
- Code radio if replacement unit is installed. Use
VAS 5051 Vehicle Diagnostic, Testing and
Information System in mode "Guided Fault
Finding". Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 54 of 82
Downloaded from www.Manualslib.com manuals search engine 91-46
"Symphony II" radio unit, removing and
installing
Special tools and workshop equipment
required
Removing
Radio release tool T10057
- Push the four clips of radio release tool T10057 into the front.
Top L - top left
Top R - top right
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 55 of 82
Downloaded from www.Manualslib.com manuals search engine 91-47
- Pull radio out from instrument panel.
- Disconnect electrical connections and antenna
wire.
- Pull out release tool from the radio - to do this,
press in the locking tabs at top and bottom on
radio.
Installing
- Reconnect electrical connections and antenna
wire.
- Carefully insert radio into instrument panel and
let it engage in installation slot.
- Code radio if replacement unit is installed. Use
VAS 5051 Vehicle Diagnostic, Testing and
Information System in mode "Guided Fault
Finding". Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 56 of 82
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
