Hey Folks, just got my wife a new 2017 Acadia Denali. Pretty sweet, every option, she loves it. It has a hitch receiver in the back along with a 7-pin receptacle and a nice cover over the whole thing (kinda cool, keeps it clean when not in use). Anyway there's no integrated brake controller like my Silverado has for towing. Has anybody put one in on this car; aftermarket, dealer, whats the best option? I want to be able to tow the boat on occasion with this Acadia rather than my truck. Any experience out there? Thanks--