I recently bought a 2011 SLT. I bought the brake controller kit to kit into the dash 82212548 as the dealer could not get one. I found out I don't have all the wiring in the dash for the controller. I also found out that the Big Horn models have the two plug in connectors required and some other models may have all the wiring if they were ordered that way. I would like to sell the controller, which I bought from Temucula Dodge for $215. It has both colored dash panels, instructions, and the controller.
You should check to see if you have two connectors under the dash.

Call if interested in purchasing. 1-541-884-8065 Fred