Most of the larger national parts stores will carry the Chilton manual on your car Sometimes you will get lucky and find an open one and you can browse through it but I would suggest that you spend...
Depending on the year, some public libraries carry automotive reference manuals which include wiring diagrams. Unfortunately, most modern automobile electronics are too complex to be printed for such...
A really good and comprehensive source for any vehicle's wiring diagram is a program call Mitchell On Demand. the program is rather expensive but many auto repair shops run this program. I would call...