Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Vehicle electrics | Communication | Infotainment | Radio "BETA” 05.98 ? | Overview of radio connectors | Contact assignment of the multi-pin connectors I, II, III on the rear of the radio

Contact assignment of the multi-pin connectors I, II, III on the rear of the radio

Multi-pin connector I, -T20- consists of 3 parts that are marked with different colours:

Multi-pin connector I, part 1, yellow

This connector is not used.

Multi-pin connector I, part 2, green

7 -	Telephone input signal, TEL+

11 -	Remote control

12 -	Telephone input signal, TEL-

Multi-pin connector I, part 3, blue

13 -	CD changer, DATA IN (data to radio)

14 -	CD changer, DATA OUT (data from radio)

15 -	CD changer, CLOCK (internal check protocol for data flow monitoring)

16 -	CD changer, terminal 30 voltage supply, positive

17 -	CD changer, control signal

18 -	CD changer, left and right channels, audio signal earth

19 -	CD changer, left audio signal channel, CD/L

20 -	CD changer, right audio signal channel, CD/R

Multi-pin connector II, -T8a-, 8-pin, brown

3 -	Front right loudspeaker, positive

4 -	Front right loudspeaker, negative

5 -	Front left loudspeaker, positive

6 -	Front left loudspeaker, negative

Multi-pin connector III, -T8-, 8-pin, black

1 -	Gala (speed dependant volume control)

2 -	Muting (for telephone operation)

3 -	Self-diagnosis, K wire

4 -	Connection for ignition-key-controlled switching on and off (S-contact)

5 -	Anti-theft system control signal, SAFE (terminal 30)

6 -	Radio display illumination (terminal 58b)

7 -	Battery positive (terminal 30)

8 -	Battery negative (terminal 31)

Volkswagen Workshop Service and Repair Manuals