Andy, Holding the engine upside-down with the long hood facing away from you, the program switch is on the left side under the cab. In front of it is the volume dial. It is the only switch on that side. On the opposite side there are two switches, smoke and sound. With a magnifier you should be able to read them. It is towards the outer edge of the frame not quite covered by the truck. Run position is towards the short hood and program towards the long hood.