Just picked up a 93 GMC S15 Jimmy SLT with less than 70K original miles. It has the trailer package but the harness is not terminated. I need a 4 pin flat connector for my trailer. There are 2 large wires and 5 small wires in the harness. Not sure what the large wires are for and the small wires look to be too small. My 94 Chevy K1500 has the standard Wht, Brn, Grn, Yel wires and they are a lot bigger than the small ones in the Jimmy harness. Any info on what is needed or where I can find a detailed wiring diagram for the hitch. Does anyone make a plug-in T connector for my 93 Jimmy?