['65 chevy lover]

Thanks to ya'll for the replies. I didn't do a good job of Describing what I need. I should have said routing instead of diagram. What I'm needing is the actual routing of the harness, especially where it leaves the cab. A friend of mine said a plug inside the cab, exits thru the firewall, and the wiring harness attaches there and then runs under the cab to the back from there. I thought the wiring went from under the dash and exited thru a hole in the floor on the driver's side toward the back of the cab and then runs to the back.