Remember the old adage - "Oils ain't Oils" well 87's aren't all 8 sevensss, now I knew the 6 way leather sport seats varied as either "early or late" that is with square or round pins in the plugs/sockets. WELL! The headlights motors got the same cross over of bits between 87 and 88 parts. Appears mine has the 88 set up and whilst my booooks show as per Sirfixalot's reply, it is more along the lines of Sabre's reply. Now in comes the spanner with "Ray" - my fan was not working, so I decided to start here and check - took out the inline fuse and looks OK -but no power - plenty available - the fuse (25Amp AG3 glass type) looked OK but had in fact unsoldered itself from the inside of the end cap. Resolder and OK, fan now runs OK, adjustable thermostat allows for quick testing and accurate setting - Thank you Ray.