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Info:- Stereo Plugs and Adapters

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Thanks to Jimi Lawson for the following information


This pin out is looking at the plugs on the car harness

if you want a ISO adaptor the number you are looking for is PC2174 usually about £7 or £8


MK1a connections

The colours in brackets are variations that I have come across

  • light blue(blue/brown) = permanent +12v
  • pink/blue = ignition controlled +12v
  • green = +12v from the dash lights, when on
  • white/black = Earth ( ground )
  • green = subwoofer remote turn on
  • white = left speaker -ve
  • yellow (yellow/black) = left speaker +ve
  • black/red = right speaker -ve
  • red (red/black) = right speaker +ve


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