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2023 - Wilderness - Brake Controller & 7-Pin Harness Installation Problem / Questions?

6.7K views 11 replies 4 participants last post by  Chorizo.Omelet  
Like Bman400 said, order a 7 pin connector, and have a trailer place install it. They can manage that without car computer issues.
I have a wireless brake controller that was an available option on my trailer, but Curt now makes a plug in wireless bluetooth brake controller you can use on your phone. Google "wireless brake controllers"
 
That is incorrect. The link I provided for the 4 to 7 pin: https://www.etrailer.com/Trailer-Wiring/Hopkins/37185.html

It has unterminated wires. Your vehicle 4-pin plugs into the 4 pin connector. You still have 4 other wires:

Wire functions:
White - ground
Blue - brake
Black - hot lead - 12 volt power supply
Purple - auxiliary

View attachment 582914

As other have suggested, DO NOT get this done via the dealer. Take it to a trailer/RV place to have it installed properly.
I used the exact same adapter on both of my foresters. plug in, connect the white to the chassis for ground, from the black, run a heavy gauge wire direct to the battery with an inline 20amp fuse, that will charge your trailer, and then if you use a hardwire brake controller you will have to run a wire to that as well from the blue, otherwise just seal the blue and purple wires, and go with the wireless. I had a local auto accessory shop wire both cars (2 years apart).
 
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