Lez, forgot to take a pic of the relay for you today. But the relay in question if you look at your relay box cover is the bottom one in the middle entitled "C". Pic looks like a turbo if you ask me? My veg kit is wired into the black and purple (I think) wire on that relay. If you get a multi meter on it its the only relay that switches live with the ignition. Hence why I used it. Plug a buzzer or led into it or something and you should see it switch off at 35mph in any gear. Hope this helps. Will do a pic of the wire if it doesn't.

No probs mate no pic required, I can trace it from the wiring digram and see what it does and where it gets it's signal from.
thanks mate.
Lez.

Will be thoroughly interested to know what it does. Spoke to a vehicle spark round the corner and he had no idea. Had never heard of it.