[Phil]

Ben
Just a hint when you wire that controller. Make sure that you go directly to the battery with the primary 12v lead. This creates a fail safe in case you were to lose power or the motor in your tow vehicle shuts down.
I wired a controller for a customer who towed a rather large camper, he had changed out the starter a few days before, and went happily on his vacation. He had a short at the starter (where his accessory lead originated), the truck shut down going down a rather large hill, and the only brakes he had were in the trailer.
He was able to use the hand control on the actuator to stop as we had wired the controller directly to the battery.
I generally use a 30 amp circuit breaker, and 10 ga. wire for the hookup.
By the way that Tekonsha is an excellent controller. Generally each wheel pulls about 3 amps under full braking, so get a controller that will handle more axles than you have as you can always cut back if you have too much braking.
Cheers
Phil