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Adapting radio components > < Overview of radio connectors

Golf Mk4

Contact assignment on multi-pin connectors I, II, III and IV on back of radio
Contact assignment on multi-pin connectors I, II, III and IV on back of radio
   
Multi-pin connector l
1 - Rear right loudspeaker, positive
2 - Front right loudspeaker, positive
3 - Front left loudspeaker, positive
4 - Rear left loudspeaker, positive
5 - Rear right loudspeaker, negative
6 - Front right loudspeaker, negative
7 - Front left loudspeaker, negative
8 - Rear left loudspeaker, negative
  N91-0412
Multi-pin connector ll
9 - CAN bus, positive
10 - CAN bus, negative
11 - Muting (for telephone operation)
12 - Battery negative, terminal 31
13 - Radio ON, control wire positive
14 - Alarm contact (USA only)
15 - Battery positive (terminal 30)
16 - Anti-theft system control signal, SAFE (terminal 30)
  N91-0412
Multi-pin connector lll
1 - Not assigned
2 - Not assigned
3 - Not assigned
4 - Not assigned
5 - Not assigned
6 - Telephone input signal, TEL negative
7 - Not assigned
8 - Not assigned
9 - Not assigned
10 - Not assigned
11 - Not assigned
12 - Telephone input signal, TEL positive
  N91-0412
Multi-pin connector lV
1 - Headphone audio signal output, right, positive
2 - CD changer, left and right channels, earth
3 - Headphone audio signal output, audio earth
4 - CD changer, terminal 30 voltage supply (+)
5 - Headphone audio signal output, left, positive
6 - CD changer, DATA OUT (data from radio)
7 - Not assigned
8 - CD changer, left channel, CD/L
9 - CD changer, right channel, CD/R
10 - CD changer, control signal
11 - CD changer, DATA IN (data to radio)
12 - CD changer, CLOCK (internal check protocol for data flow monitoring)
  N91-0412

Adapting radio components > < Overview of radio connectors