Go to the library and hit up the automotive section and they should have a TON of books for repairs and wiring diagrams, make a copy. I had to do this for my POS Cavalier.
Another option would be to go to the dealer and see if you could squeeze a minute of time out of one of the lead mechanics to throw in a disc for the wiring and have him print it out. I also did this for the fog light wiring on the Lightning.