I am having some voltmeter issues. Can someone with a trailer harness tell me what color factory wires to tap into. I have ran the right turn signal wire inside tail light assembaly likewise the rest of the wires are ran into the left side assembaly so that all connections will be protected from the elements. I have the Curt harness with the inverter. All I need is to tap into the correct wires. I am going to use one of the tail light mounting screws as a grounding point hopefully. Thanks

91 Montero LS "Sandstorm", Auto, Dual Bouncy Seats, 2" Suspension lift, 2" Body Lift, GENII front IFS, 32" MT tires

89 Raider "Trailbreaker", 3.0, Auto, Dual Bouncy Seats