Salters I have 3 in bed salters salt dog/buyers $500 bucks come get them there set up to be self contained so you can run them on any truck or put them on a trailer and keep your truck salt free and clean. Buy self contained you dont need a wiring harness you just hit a switch on the Hooper and there is a battery box mounted to the hopper so there is extra lights as well. I also have lots of tailgate salters western fisher and boss $ 200