There are a lot of people on IRV2 that tow Subarus. Just turn the key to Accessory, shift into neutral and release the parking brake. No fuses to pull. You do need an auxiliary brake though as the Forester weighs over 3000lbs.(Don't know about the Outback). I use the Even Brake.
John and Mary Knight
2015 Ventana 4311, 2015 Cadillac SRX