I've looked at a couple of Merak SS wiring diagrams and it looks like these might have run between the electric aerial and the switch to operate the aerial. A Previous owner upgraded the radio cassette some years ago and the aerial operation now works off the radio on/off knob instead.I did discover 2 disconnected wires but the wiring looks original and I cannot recall them from when I installed the electronic ignition 4 years ago. They may be red herrings. The colours are grey and grey/black if anyone knows where they are from?