On my 12 SHO I have the one button dealer installed remote start. That was how you did when you ordered a car and wanted that. My problem is that how do you make the car run longer than 5 minutes and how the hell do you stop the engine from killing when opening the door? This system has the separate remote that attaches to the factory key fob. This design is horse$hit. My 13 XSport has everything on one fob and does not kill the engine when opening the doors. Any help would be appreciated.