I added a Tekonsha Prodigy P3 electric proportional brake controller. I mounted it on the left side of the steering wheel in the space between the dash switches and the fuse access panel. I ran the wiring harness through the finger hole in the fuse access panel. In the future I will put wire cover over the wires to give it a more finished look. I this position the controller doesn't interfere with operating the parking brake.
I purchased three keyed-alike locking hitch pins. They are Master Lock 1480KA from etrailer. Two are used for the vehicle to trailer coupler, one on each side of the max coupler. The other is to attached to a shackle receiver.