Block diagram of connecting an interface module for a telephone
- 1 - antenna for telephone and radio. The connector is located under the front center console.
- 2 - VDA connector for the control electronics device (interface module). The plug is located under the rear center console.
- 3 - power supply for the phone.
- 4 - loudspeaker in the driver's door.
- 5 - telephone microphone, in the A-pillar on the left.
- 6 - radio receiver.
- 7 - radio / telephone loudspeaker switching relay. The relay is located on the relay holder behind the instrument panel trim on the driver's side.
Models specially prepared for this may have a telephone (radiotelephone).
The AUDI A3 requires its own control electronics, the so-called interface module, to use the telephone. It provides communication between the radiotelephone and components installed in the vehicle via a VDA connector.
The AUDI serial telephone is connected to the indicated VDA plug connection via a special interface module.
Which interface modules can be used for phones from other manufacturers, you need to find out from these manufacturers. Interface modules without a VDA plug connection require an appropriate adapter (e.g. Votex).
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