Just curious... Does anyone use an auto start system that will start the truck engine if battery volts or reserve capacity falls too low? I found a company called FW Murphy and they sell engine controllers that still require a sensor to "read" the batts and close the circuit to activate the controller. I'm thinking by the time I do all that, I might as well get 2 dual purpose batts, a box, the solenoid, etc. and wire everything to the inverter and forget about it...