Recommended 7-Way and Brake Controller for a 2017 Ram ProMaster City  

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Expert Reply:

Sounds like you need a 7-way connector and a brake controller for your 2017 Ram Promaster City. I will be happy to help you find the right parts.

To add a 7-way connector to your utility van you're going to need two separate wiring harnesses because no one made just a 7-way connector for it. The first harness you will need is the, previously recommended, Curt 4-Way Wiring Harness item # C56270. This harness is custom fit and installs behind your rear tail lights and inside the door frame. It will provide you with a 4-flat wiring harness.

The second harness you will need is the Universal Installation Kit for Trailer Brake Controller item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your vehicle with an included bracket. This kit is designed for use on a vehicle, like yours, with an existing 4-way flat trailer connector and plugs directly into it. 

You will then connect the blue wire to the blue wire on the brake controller, connect the black wire to the positive post on the Ram's battery, the white wire to ground, and the yellow wire to vehicle's reverse circuit if applicable. This will provide you with the ability to control your trailer's brakes and also provide you with a 12v power wire for you trailer's accessory lights.

For a brake controller, I strongly recommend the Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness item # RED52VR. This is a proportional brake controller that will engage your trailer's brakes when your Promaster decelerates. It activates immediately and is not time delayed. The Tow-Pro Liberty has a unique installation method that allows you to mount the main control unit out of sight behind your dash. The only part visible is the control knob. This means no bulky controller to bang your knee on while driving.

The included wiring harness will allow you to splice into your existing wiring.

expert reply by: Jerred H

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