Go to "Forums" above then scroll down to "Electrical" and then then scroll down to diagrams.
Is the wiring intact in your truck? If it's all messed up, you may want to buy a wiring kit to make life easier. Also, make sure all your ground straps are new and have good clean connections. I had to add several in my old truck to help the lights work better. Amazing the difference.
Here's a site diagram:
http://outintheshop.com/faq/wiring/wiring.htm