No it doesn't say searching. And its doing it on nearly all the channels even when stationary. It's definitely switching rapidly between mono and stereo. Ah, so there is a preamp ? Is it in the roof by the antenna or just behind the radio ?CitroJim wrote: Some MK2s had an aerial pre-amp that can fail and cause the problems you are having Simon. Sounds like the signal is weak. Does the display say 'searching' when that happens?
I'm pretty sure its not the brake pedal switch. I can hear the relay click when I activate it with the stalk and click again when I touch the brake pedal to deactivate it.All good luck on the cruise control. Most likely you'll find it's the brake switch. If it is, sometimes they can be provoked to work for a short time by carefully hooking your toe under the edge of the pedal and pulling it upwards. Do please only try this on a clear stretch of road... !
Now that I've read your article on how to fix it again my money is on corrosion of the two electrical connectors on the vacuum pump, there is a lot of rust in that area, including the nearby horns/siren which are nearly all rust