What do you Recommend for a Hitch, Brake Controller and Wiring on my 2017 BMW X3

Question:

Hi, I am installing a Curt 13316 trailer hitch in my 2017 BMW X3 s28i. I have electric brakes on the travel trailer that I plan to haul with the BMW. I’d like to order a proportional brake controller for this purpose. My questions are: 1. If I get a 7 way wiring kit, do I still need a 4way wiring kit as well? 2. Do I need anything else besides a 7 way wiring kit in order to connect the trailer brakes to the controller and vehicle? Please let me know based on your experience and expertise.

asked by: Lenny W

Expert Reply:

We can get it all sorted out. The Curt Trailer Hitch Receiver part # C13316 is a fine choice in hitch. The rest will consist of a 4-way, brake controller install kit and a brake controller.

You will want a 4-way harness like the ZCI Circuit Protected Vehicle Wiring Harness part # 119250KIT this will get the 4-way we need to act as the light circuits on the 7-way plug we get with the Universal Installation Kit for Trailer Brake Controller part # ETBC7 this will leave you with both a 4 and 7 way plug and the wiring you need to connect a brake controller to. The Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 is one of my favorites for an on dash mount and the Redarc Tow-Pro Elite Trailer Brake Controller part # RED44FR is my go to for a more hidden in dash look.

I've included some videos on them for you to check out.

expert reply by: Randy B