Can anyone scan for me a copy of the wiring diagram for the airconditioning system in a 1989 V6 164. It's wiring is different from the '92 model that I also have, and quite different from all the wiring diagrams on the Car Disc. A previous owner has hacked the system, and there is a plug that should lead possibly to a relay that's just hanging there. It's wires run to the control unit, power feed and aircon compressor clutch. Any help would be greatly appreciated. The plug has five of the six openings on it populated by wires. Thanks in advance.