I installed a Tekonsha Prodigy P3 brake controller. Interested in feedback on the location, from you folks who've done this before (this is my first time). I can reach down and touch the unit easily without taking my eyes off the road - this is needed in case I use the manual lever, right? Anyway, it's easy to access, and doesn't get in the way, even when getting in and out of the driver's seat.
I saw a mounting opportunity using the fuse box door by the driver's left knee. With a brand new car, I'm a little shy to drill holes through anything expensive or hard to replace. I purchased a new fuse box door from Subaru (p.n. 66135AJ020VH door, and 82245XC00A label) and mounted the wide P3 bracket to it. The fuse box door closure tabs are barely strong enough to hold the additional weight of the controller and bracket, so I added magnets on the door and steel brackets to the opening.
The dash is a little curved, so to get the P3 parallel to the direction of travel, I skewed it in its mount a little.
The mounting is very solid and clean. I might pick up some thumbscrews to replace the side philips heads so I don't need a tool to tighten or align the controller in its bracket. To remove the controller, I open/un-hinge the door, tilt the controller forward, and unplug the cable plug.
Since the controller doesn't have on/off, I guess I have to unplug the unit when not towing anything. It's good to keep it out of sight when it's not needed anyway.
Now all I need is a trailer with a brake!
F.S.
Edit: This is on a Touring with factory tow hitch option, so I found the open connector in the panel by the driver's left foot per the posts and pics above (thanks!!), and the dealer left the wiring harness in the glovebox. Soldered same color Tekonsha wires to same color Subaru harness wires. Hardest part was clicking into the open connector... not much slack there at all.