2011 Outback 2.5i Premium, CVT, Steel Silver, all-weather package. Upgrades: Tweeter kit, BlueConnect, media hub, remote start, Curt 2" receiver hitch.
I know you've already bought the controller and wiring, but just for general knowledge, there is a Prodigy controller that is wireless. There is a box that mounts to the trailer, and then a controller that just plugs into a 12v outlet in the car. It is proportional, and can be manually actuated like the other Prodigy controllers. The main downside is cost... I is $299. However, it may be cheaper than buying a good controller AND having it installed. Plus, it is easy to move the controller from one tow vehicle to another.