Agree on the built-in. Had a Prodigy in my 2005, built-in in the 2011 is way better. Since it's connected to the on-board computer it can adjust the trailer braking based on the amount of braking from the TV. You will love the new truck. Just traveled from Western NY to Central FL. cruised most of the way in 6th gear.
2018 Silverado 3500HD High Country Dually 4x4 Duramax/Allison, 2016 Redwood 39MB, Disc Brakes, Mor/ryde IS, Sailun 17.5" H tires, 5.5K Onan, Dual ACs, auto level, auto sat dish, stacked washer/dryer, residential fridge, King sleep number. Michelle & Ann