2 Pin Flat Trailer Wiring Connector. Not surprisingly, the standard flat-style connector for trailers uses four pins, with one. This may seem counter intuitive if your truck has a hard mount trailer plug and the trailer does as well because there is no slack to plug the two together, but it makes for a stronger and longer lasting setup.
Trailer wiring can be difficult to get your head around. Wrap the spliced wires in electrical tape and make a wiring harness. Get the best deals on Trailer Wiring Harness.
Not surprisingly, the standard flat-style connector for trailers uses four pins, with one.
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Cinch each end of the harness with a small zip-tie. Wrap the spliced wires in electrical tape and make a wiring harness. Crimp each connector then plug the connector into the tow vehicle.