I have a better option for you to consider and it eliminates all the troubles of a remote start. Install one of the aux coolant heaters and circ pumps. They can be pricey but some work really well. They can usually be set Tina timer or clock so they come on at a preprogrammed time a d when you come out to your truck the coolant is all toasty and heat pretty much from the get go. Webasto sticks in my mind but there are others.thats jus dumb