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Wiring a trailer can be tricky, but this harness keeps it simple. The Curt T-Connector plugs right into existing factory wiring under the trunk liner, so there’s no need to cut or splice any wires. It includes a powered converter and all the hardware needed for a complete install, giving you a clean setup with factory-style connections.

Having the 4-way connector stored inside the vehicle keeps it out of the rain and road debris that cause corrosion and damage. When it’s time to tow, just run the connector out through the rear hatch and hook up your trailer. This small detail makes a big difference in how long your wiring lasts and how reliably it works.
Once installed, the harness provides a standard 4-pole flat connector for your trailer’s running lights, turn signals, and brake lights. It’s powered through an included 10-amp in-line fuse that connects to the vehicle’s battery, so your trailer lights get consistent power without overloading factory circuits.
If you ever need to tow with electric brakes or add a 7-way connector, this harness is a solid starting point. With the 4-pole already in place, you can pair it with a kit like part # ETBC7 to hardwire a 7-way and add a brake controller. This setup gives you flexibility for towing different trailers down the road.
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Tom
2/21/2026
Working great! Note what I said in original Al post about not needing to run the black wire to the battery on the Murano.