2020 Subaru Outback 7-Way Trailer Wiring Harness for Reverse Light

Updated 07/07/2020 | Published 06/30/2020

Question:

I’m looking to install a hitch wire harness on my 2020 Outback. The ones that you offer have a 4 flat connector. My boat trailer has round 7 pole rv with 5 wires. Any help in making this work would help. The trailer does not have electric brakes. Photo of connector attached.

asked by: Craig

Expert Reply:

Thanks for the picture of the 7-way on your boat. From that I can tell you have a reverse light circuit active on it so what you'll need is to first start with a 4-way on your 2020 Outback like part # C56040 and then convert it to a 7-way with part # 37185 and then run the purple wire to the reverse light circuit of your vehicle and you'd be set.

expert reply by: Jameson C

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Craig

7/2/2020

Any tips on finding the reverse light circuit on this vehicle?

Chris R.

7/7/2020

I wish we could verify this, but your best route will be to actually test the wires behind the tail lights. You're just looking for the one that receives power with the reverse lights illuminated.