Wiring Diagrams...

Hi, I'm new to the forum; just bought my first Jeep. I've always wanted one, but never could afford it. Finally I have a 92 YJ Sahara. I'm trying to get the radio wired in properly (previous owner rigged one in and melted some wires) and I can't seem to find a good wiring diagram. I have a Haynes, but those are almost useless for wiring. Does anyone know where I can get an accurate, color true diagram for this model? Any help is greatly appreciated.