Well if you break all the pins off it will fit then! I am looking at the schematics from an 89 manual 4F, pin 6 is Red/Purple. It is a common wire to the Starter Slave Solenoid Red/Pur, Circuit Breaker and Red/Pur on a Mando alternator. PM me and I can FAX you the schematic. The schematic shows the relative clock positions of each pin and where they go. Sounds like a fun project, you must be close if you are plugging in.