has instructions for mounting LED lights, but also indicate which wires are which...
I wired in a hitch last week.
From his site...
Jeep Harness - Light Function
Purple/Black - Backup light
Black/Yellow - Tail light or Side marker light
Green/Red - Left Stop & Turn Signal
Brown/Red - Right Stop & Turn Signal
If you have stock lights still, you can get a harness for a Jeep at Advance Auto. The one I bought was for 98-04 and the plugs were different. No biggie. I have LED's anyway and used those crimp taps to set things up. You can get a unversal one for about 15.00 or so.