7-Way Trailer Wiring Recommendation for 2015 Mazda CX-5

Published 05/12/2022

Products Featured in This Question

Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

(3397)

$121.27

Adapter 4-Pole to 7-Pole and 4-Pole

(659)

$61.55

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(549)

$42.90

Tekonsha BRAKE-EVN Trailer Brake Controller - 1 to 4 Axles - Proportional

(154)

$86.63

Question:

Hi, Im looking to purchase a wiring harness for my mazda cx-5 to tow an Aliner pop trailer which I believe has a 7-way connector. I cant find a 7-way wiring harness that matches the 2015 mazda cx-5. Do you have one available? Do you have any other advice? This will be our first trailer and this all new for us. Thanks and I look forward to hearing back from you.

asked by: Joseph R

Helpful Expert Reply:

We have a way you can install a 7-way on your 2015 Mazda CX-5 but not all vehicles have custom fit 7-ways made for them so you'd have to start with the more common 4-way like the part # C56011 which is custom fit for your vehicle. From there you'd need to convert it to a 7-way like what your trailer needs. If the trailer does not have brakes all you need is the # 37185 which plugs right into the 4-way and you'd be set.

If the trailer does have brakes you'd instead need the # ETBC7 which comes with additional components needed to wire in a brake controller like the very popular and great performing Brake EVN # TK63VR. This uses an inertia sensor to determine how hard to apply the trailer brakes based on how hard you hit the vehicle brakes.

expert reply by: Jameson C