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Trailer Wiring Harness Recommendation for a 2014 BMW X3

Question:

Does the following work on a 2014 BMW X3 to allow me to get brake/stop lights on a trailer? Looking to install a hitch on my vehicle. Curt Upgraded Circuit Protected Tail Light w Converter Hardwire Kit - 4 Pole End Includes Tester Curt Wiring Code C59496

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Expert Reply:

I have a trailer wiring harness that will work for your 2014 BMW X3, but according to Curt, the Upgraded Circuit Protected Tail Light Wiring Harness, # C59496, has not been tested on the 2014 model yet.

The harness that I recommend is the Tow Ready Heavy-Duty Modulite Wiring Harness, # 119190KIT. I spoke with my contact at Tow Ready and he confirmed that this harness will work. We have installed this harness on a 2013 BMW X3, so I attached the installation video. The installation will be similar to your 2014 model.

I strongly recommend using the included circuit tester to test the wires on your X3 before making any splices. Vehicle manufacturers have been knows to switch wire colors between different model years, so testing the wires is the best way to determine the correct wires.

expert reply by:
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John H

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