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

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Radio system

General information


CAUTION!

Before beginning repairs on the electrical
system:

Obtain anti-theft radio security code if
necessary.
Switch the ignition off.
Disconnect battery Ground (GND) strap.
On vehicles equipped with Audi Telematics
by OnStar , switch-off the emergency (back-
up) battery for the Telematic/Telephone
Control Module prior to disconnecting
vehicle battery. Use VAS 5051 Vehicle
Diagnostic, Testing and Information System
in mode "Guided Fault Finding" Page 91
-
119
.

After reconnecting vehicle battery, re-code
anti-theft radio if necessary and check
operation. Also check operation of clock and
power windows according to Repair Manual
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-25

"Concert II" and "Symphony II", 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 power amplifier
7 - 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 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 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

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

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 91-52

Satellite Radio -R146-, removing and
installing (Sedan)


Removing

- Remove sub compartment in luggage
compartment, left
Repair Manual, Body Interior, Repair Group
70


Satellite radio -1- slides/locks into adapter plate -2- mounted to rear of sub
compartment -3-.
Adapter plate does not need to be removed.
Installing - Disconnect electrical connections at satellite radio.
- Depress both locking catches on adapter plate -2- in direction of -
arrows-.
- Slide out and remove satellite radio -1- from adapter plate -2-.
- Install in reverse order of removal.
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-53

Satellite Radio -R146-, removing and
installing (Avant)


Removing

- Remove sub compartment in luggage
compartment, left
Repair Manual, Body Interior, Repair Group
70


Satellite radio -1- slides/locks into adapter plate -2- mounted to rear of sub
compartment -3-.
Adapter plate does not need to be removed.
Installing - Disconnect electrical connections at satellite radio.
- Depress both locking catches on adapter plate -2- in direction of -
arrows-.
- Slide out and remove satellite radio -1- from adapter plate -2-.
- Install in reverse order of removal.
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication