I have a cadillac alternator that i am trying to put on my 1993 toyota pickup. it bolts on fairly easily but im not sure what the wires are for both the alternator and the wires from the wiring harness in the truck. the plug in the larger alternator is a 3 prong just like the toyota alternator. in the plug it contains one wire that is larger than the others which i am told maybe be for charging the electrical system, for example powering the fuse block.. the other two wire could be for a guage and engaging the alternator, im not sure. i also need to know what each color wire on the stock plug mean or do. thank you
Last edited: