2002 AUDI A4 radio

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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

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

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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

Downloaded from www.Manualslib.com manuals search engine 91-67

Antenna Selection Control Module -
J515- (Sedan), removing and installing


Removing

- Remove rear headliner trim.
Repair Manual, Body Interior, Repair Group
70


Note:
Illustration shows antenna selection control module on vehicle without
radio remote control for auxiliary heater.
Installing - Disconnect Ground (GND) lead -1-.
- Release clasps -arrows- and remove control module -3-.
- Disconnect electrical connections -2-.
- Install in reverse order of removal.
- Reconnect the electrical connections according to the color-coding on
the control module for antenna selection.
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication