7 Pin Trailer Harness Connector. Splice the seven-pin trailer plug leads to the trailer harness. I want to add a wire for backup lights on the trailer.
Each lamp is fitted with a waterproof connector and joins effortlessly to the main harness which is also. I have seven wires in the connector (truck side) that plugs into the truck wire harness. yellow, green, orange, blue, brown w white. Jump to Latest Follow. i bought a aftermarket plug at a trailer store. my wires were corroded too. the aftermarket plug was the kind with set screws so it was a easy fix. be sure to strip the wires back far enough to get to the good copper. i like to use this stuff called no lox for.
I want to add a wire for backup lights on the trailer.
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I found this one on Amazon, but it appears to be for a Tundra; didn't find one for Tacoma. If anyone needs it, the diagram is attached Relocated Trailer Harness. If you have had a tow-ball retrofitted to your car then you will also need to install a tow bar wiring harness kit which will then allow you to hook up the trailer signals.
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