Review on 🔌 CUSTOM 4-Pin Trailer Wiring Harness - CURT 55370 | Compatible with Subaru Forester, Legacy, Outback, Tribeca, B9, Impreza WRX Wagon by Derek Dolla

The vehicle is not on the valid model list but lo and behold I have a connector behind the passenger brake light in the trunk. I expect many other models will fit this, just slide back part of the interior carpeting and see if you can find the white plug (it should be blank, ready for a curt plug). It was a lot easier than using Kurt's suggested wiring, which required me to drill and route battery leads.