Chris & Laurie, Congrats on your new purchase. If you think you might add a roof top sat dish at some point you may want the factory to install some additional cables. They do install some, but if you're like us we have a DVR for the Living Room TV, and two additional Rcvrs, one in the bedroom and the other setup for the basement area. So we had the Factory install 4 cables from the roof to these locations.
BTW in June we were down in your area for the North Eastern Montana Rally at Old Mill Stream CG, right next to Dutch Wonderland.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top