I just purchased a new Prodigy from Tekonsha.

I had been using their "Commander" which worked OK, but they do not make it any longer.

The neat thing about the Commander was you just mounted it on velcro on top of the dash and removed it when you were not towing.

I got the Prodigy for $105.00, which is kind of pricey for a controller (usually controllers are in the $50 range).

Cheers.