My jeep has what seems to be a factory tow package with the round 7 pin connector. However the PO cut the wiring. I have searched all over but I can't seem to find what each colored wire corresponds to. These colors do nit match the available wires from an aftermarket 7 pin set up... Anybody know which wire does what?

 

Chiltons or Haynes has it in the wiring section. Or you get a test light and a helper to find out and label the wires. I have the diagram at home and I know Google has the universal diagram.