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I am trying to wire a 2004 chevy silverado with a 7 way plug on it to an old boat trailer with 4 wires on it. The 4 colors are white, yellow, green, and brown. I need a wiring diagram to show me which wires go with what colors. Also I need to know which wire on the truck is actually the ground wire. Thanks!
white = ground
yellow = left turn-brake
green = right turn-brake
brown = running lights
7 pin=
will be different colors
pin 1 = white
pin 2 = blue-electric brakes
pin 3 = green-running lights
pin 4 = black-12 volt power to anything
pin 5 = red - left turn
pin 6 = brown- right turn
pin 7 = purple- auxillary ciruit B.U,
no telling what on your truck I don't know