I used to have an Envoy and I never liked it. I was always fiddling around with it and could never seem to get it set right. Recently shelled out the big bucks for a Prodigy after using one in a friend's rig. Really a nice unit. Plug it in, set it up and don't worry about it. Ford trucks are pre-wired for a controller, don't know about your Durango. Shouldn't be too hard though, just follow the directions. Good luck!