Overview
I had the original 4 pin trailer wiring harness installed by Subaru when I purchased the vehicle. However, I would like the ability to connect up my camper without having to use a 4 pin to 7 pin adaptor. In the future, I would also like to be able to charge my camper battery while driving.
Parts
| Parts | Picture | Price | URL |
|---|---|---|---|
2022 Subaru Outback Subaru Trailer Hitch Receiver 2 Inch Class II |
| $471.66 US? | |
Oyviny 4-Way Flat to 7-Way Round Blade and 4 Way Trailer Wiring Harness Adapter *** I went with this one! |
| ~$30 | amazon.ca |
| Hopkins 47180 Endurance |
| ~$55 | amazon.ca |
| 40/30 Amp Waterproof Relay Switch Harness |
| ~$18 | amazon.ca |
| 40A Circuit Breaker |
| ~25 | amazon.ca |
Wiring
For Now
For now, I simply connected the 7 pin harness adaptor to the existing 4 pin connector and zip tied them together. I screwed the white ground wire into the body of the car. Later I will connect up the black wire (12v power) to the battery using the relay and circuit breaker listed in the parts section.
Fuse
The original trailer wiring installed by the dealer has a fuse in the truck near the spare tire.
References
| Reference | URL |
|---|---|
| 7-Pin Trailer Wiring Subaru Outback | https://www.youtube.com/watch?v=N7BYNbutLxo |