CD changer AUDI A4 2002 B5 / 1.G Radio System General Information

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6 -
Rear Bass Speakers
In lower rear door trim
7 -
Rear Midrange Speakers In upper rear door trim
8 -
Bass Loudspeaker Below rear shelf
9 -
Center Mid/High Range Loudspeaker In instrument panel
10 -
CD Changer Unit -R41- OptionalIn glove compartment
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-31


7 -
Front Midrange Speakers
In upper front door trim
8 -
Rear Bass Speakers In lower rear door trim
9 -
Rear Midrange Speakers In upper rear door trim
10 -
Bass Loudspeaker Below rear shelf
11 -
Center Mid/High Range Loudspeaker In instrument panel
12 -
CD Changer Unit -R41- OptionalIn glove compartment
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-32

"Concert II" and "Symphony II" radio systems
with "BOSE sound system", Multi-pin
connector terminal assignments
Note:
Terminals which are not listed are
vacant/unassigned.

Multi-pin connector I, 20-pin - black
1 - Line output - left rear
2 - Line output - right rear
3 - Line output, Ground (GND)
4 - Line output - left front
5 - Line output - right front
6 - Switched positive for BOSE power amplifier7 - CAN Bus - High (Infotainment)
10 - Ground (GND) (CD changer)
12 - CAN Bus - Low (Infotainment)
13 - CD bus data input (CD changer)
14 - CD bus data output (CD changer)
15 - CD clock (CD changer)
16 - Battery positive B+ (CD changer)
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 17 - Switched positive for CD changer
18 - Ground (GND) line output (CD changer)
19 - Line output - left (CD changer)
20 - Line output - right (CD changer)
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-37


7 -
Rear Midrange Speakers
In upper rear door trim
8 -
Rear Bass Speakers In lower rear door trim
9 -
Bass Loudspeaker Under rear parcel shelf
10 -
Center Mid/High Range Loudspeaker In instrument panel
11 -
CD Changer Unit In glove compartment
12 -
Satellite Radio In left rear luggage compartment
13 -
Satellite Tuner Antenna On roofAlso for Telematics and Navigation
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-39


9 -
Rear Midrange Speakers
In upper rear door trim
10 -
Rear Bass Speakers In lower rear door trim
11 -
Bass Loudspeaker Under rear parcel shelf
12 -
Center Mid/High Range Loudspeaker In instrument panel
13 -
CD Changer Unit In glove compartment
14 -
Satellite Radio In left rear luggage compartment
15 -
Satellite Tuner Antenna On roofAlso for Telematics and Navigation
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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


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