Radio, Stereo, and Compact Disc: Description and Operation

Radio systems

General information


CAUTION!
Before working on the electrical system:
- Determine the correct coding for the anti- theft radio.
- Disconnect the battery Ground (GND) strap.


NOTE: After re-connecting the battery, activate the vehicle's electrical equipment (radio, clock, power windows, engine).


NOTE:
- A new generation of the radio is being used for model year 1998. The "Delta" radio will be replaced by the "Concert" radio which has On Board Diagnostic (OBD) capability.
- When addressing customer complaints, it is absolutely necessary to know the functions and the operation of the radio system.
- Repair Manual "Body Interior" contains detailed installation instructions, e.g. removing and installing trim.
- All radio systems are equipped with anti-theft coding.


Retrofitting radio systems
- The connectors on the factory-installed radio wiring harness are designed for genuine Audi radios.
- Radios with different types of connectors must be installed using adapter wires.


CAUTION!
When connecting the vehicle speed sensor signal wire (on radios with the GALA function), take particular care to avoid short circuits, which could result in vehicle malfunctions (e.g. in the engine management system)


- Vehicle malfunctions may also occur if the vehicle speed sensor signal wire is connected to radios supplied by other manufacturers.
- If a non-stock radio is installed ("Concert" m.y. 1998) it can have a negative effect on the antenna amplifier. The original Audi radio units supply power to the antenna amplifier through the center wire of the HF cable.

Retrofitting CD systems
The wiring for the CD changer is installed in the vehicle during production. The connecting cable can only be used with original Audi CD changers.