actually you guys are incorrect.
the reason the remote start shuts off when the door is opened is because of the mykey feature.
the remote start does not know if a mykey is being used, therefore opening the door and disengaging the engine, forces you to physically start the vehicle using either a regularly programmed key, or a programmed mykey, so that the vehicle knows if it is supposed to be limiting speed, radio, etc...
i believe we can disable this at the dealership, but the mykey feature will be disabled when using remote start