A CURT custom wiring harness (also called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring.
Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT's custom wiring harnesses come into play. Custom wiring harnesses plug into your vehicle's electrical system using original equipment (OEM) connectors. Our custom wiring harnesses use two or more OEM connectors to plug in at the taillight assembly and provide a standard trailer socket to allow a trailer to be plugged into your vehicle's power system.
This harness provides a 4-way flat connector socket and comes with a circuit-protected converter. It is designed to be a custom wiring harness for certain years of the Toyota Rav4 (to verify your vehicle compatibility, see the CURT application guide at curtmfg.com). CURT custom wiring harnesses are long-lasting and quick to install. They come with dust covers to keep your connector clean when not in use and feature a one-year limited warranty to give you peace of mind.
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Easy to put in the back part. The back side run to the passenger side light would have been better if it was about 6" longer. If the passenger light run was a bit longer the unit could have been mounted to a more flat surface. Double sided sticky tape was weak, not aggressive enough to hold the unit in the Texas heat for more than a few minutes, had to get a more aggressive tape. They don't give you enough wire ties, in my opinion, to mount the wire to the battery wire run--so there isn't a vibration issue over time, I used many more ties. The wire ties came rubber banded so they were bent in the opposite direction that would have been useful--you had to unbend the ties to the opposite direction so you could connect the ends. Much easier if you have access to a lift. The crimp connectors supplied were mostly for 12 gauge wire, all the wires are 14 gauge (mostly) I used heat shrink but splices but 14-16 gauge. Engineer who designed installation should have to install a few, without a lift. Once installed the unit is good.