I installed the Roadmaster baseplate (Towbar Mounting Bracket Kit) on my '15 Trailhawk. I used the EZ-5 kit (521446-5) having twist-lock adapters similar to the Blue Ox one. I chose this one after considering both for two reasons: (1) It requires less modification of the underlying metal components, and a minimal amount of trimming of the plastic fascia. (2) I have used a similar Roadmaster Twist-Lock baseplate on my '02 Dakota.
One thing though, Roadmaster's iinstruction sheet showing location and procedure for removing the fascia leaves much to be desired. (Their tech support department seemed clueless when I tried to get information in multiple phone calls, but full of excuses when I complained later.) I should have also read the BO instructions... my bad. If you decide to use the Roadmaster baseplate, PM me for more details.
CherryRed&Black, V6, Uconn8.4-Navigation
Comfort/Convenience, ColdWeather, TrailerTow pkgs
Status D1: 8/13, F: 8/26, I: 8/27, KZ: 9/2, KZM: 9/3
Arrived at Dealer 9/10, 42 days from order date.
Took Delivery Sept. 12, 2014.