well instead of using scotch locks
hideous things.
I was thinking of buying the plugs to match the two locations so a small middle man harness could be made to allow the relay to be plugged in with out modifying any of the car wiring harness.
If you must splice wires in to a car harness they really ought to be soldered in to prevent problems in the future.
Connectors are quite cheap like a few quid each so I am doing some digging through the wiring diagrams at the mo to get a list of part numbers.