I keep two 25' chunks of co-ax in one of my compartments for hooking up my satelite dish... (with a 5 year old; TV is a lifesaver on rainy afternoons, but I digress...)
Neither are anything special; one I made myself, one I got from Home Depot for a couple of bucks. As long as it's not laying in water, it'll be fine; and most jackets are UV resistant, so being outdoors wont hurt them.
RG-6 is good, RG-59 would work though, don't need anything fancy - Walmart, Lowes Depot, can get it just about anywhere...
2014 Grey Wolf 28BH, behind a 2015 F350 Diesel Crew Cab
Nights Camped 2015: 37
Nights Booked 2016: 44
Nights Camped 2016: 41