Test drove a RTL today and love it. Asked about the towing package, understanding it is the hitch and wiring harness. When I asked the salesman if the wiring included a hook-up for a brake controller, he said he would check with the service tech. Came back in 2 minutes and said the tech said they are not needed, that the brakes on the trailer are activated off of the 7pin plug. I don't believe he knows what he is talking about but didn't feel like questioning him about it today. Can anyone tell me for certain whether the wiring is all set under the dash for a controller or not? If so, what is required to install one? thanks all.