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4-Way and 7-Way Wiring Harness for a 2022 Toyota Sienna  

Published 01/20/2022

Question:

I have a 2022 Toyota Sienna. I need a 4-way and a 7-way wiring harness.

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Expert Reply:

To add both a 7-way and 4-way vehicle connector to your 2022 Toyota Sienna you will need two different parts. The first is the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # TK69FR. This custom-fit T-One connector plugs into your Sienna's wiring harness located in the rear cargo area. It does not require cutting or splicing. This will provide you with a 4-way connector.

The second harness you will need is the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your Sienna with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer connector and plugs directly into it.

If you need a brake controller the Tekonsha Prodigy P3 Trailer Brake Controller item # 90195 is a great option.

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