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Parts Needed to Install a 7-Way Trailer Wiring Harness in a 2016 Toyota Sienna


Purchased a 2016 Toyota Sienna SE. Need to install wiring for brake lights for our lightweight camper. Trailer has 7 way plug. Recently installed wiring in our Honda Pilot...very easy. Looking for something similar for the Sienna. Thoughts?


Expert Reply:

For a custom fit 4-way for your 2016 Toyota Sienna you would need to start with the part # 118498. I attached an install video for this for you to check out as well.

Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way.

If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller. This kit comes with everything needed to wire up the 7-way and install a brake controller.

For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to setup.

expert reply by:
Jameson C

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