matt67350,
Checkout
www.ebaymotors.com for a factory service manual for your year model. I bought one for $35. I've seen some go for $15. It all depends on the year. The factory service manual has great details on every part and very nice details with the electrical diagrams. Sometimes you can find a manual just with electrical diagrams too. I recommend everyone try to find a factory manual for their truck. More information than you can dig up anywhere.