I've found two on the web, this one
by Hensely who of course is wanting you to buy theirs, and another one in Truck Trend
. Go to page 4 of the article to cut to the chase.
I went with a Tenkonsha P3 for the Titan only because I got it for under $100 with sales and rebates. I would have bought the Prodigy again (went with the Pathfinder when I sold it) had it been significantly less money. My take on P3 is a fancy Prodigy plus you can choose electric or hydraulic braking depending on your trailer brakes.