Wire Colors For 7 Way Trailer Plug. I have no idea how to wire it now without having the trailer and I can't go get the trailer without having the Looking to the rear for the trailer plug ~ the pins are reversed - and the simple way to keep it straight is to think in terms of "PASSENGER SIDE" and DRIVER SIDE". trailer that goes to that turn signal, most trailer harnness are color coded, and your vech, should have a color code for the trailer plug Don't worry about the extra wires, the trailer with a four wire plug doesn't use them. I don't know the color link (easy enough to figure out tho).
In your case ring out each wire by position and mark by function. Determine which color wire supplies constant power to the ignition switch. This is the most common configuration.
The trailer wiring colors for this.
The plug I bought had yellow as the center aux color.
But the wires well most likely be. I have no idea how to wire it now without having the trailer and I can't go get the trailer without having the Looking to the rear for the trailer plug ~ the pins are reversed - and the simple way to keep it straight is to think in terms of "PASSENGER SIDE" and DRIVER SIDE". trailer that goes to that turn signal, most trailer harnness are color coded, and your vech, should have a color code for the trailer plug Don't worry about the extra wires, the trailer with a four wire plug doesn't use them. Trailer plug wiring is standardized across all vehicles, no point trying to find vehicle specific info.