I just bought a Western Rivers Predator Stalker and a Predator Deceptor. The stalker (a caller)fits on top of the Deceptor (motion stake) and is supposed to run on one 9 volt battery. It has 3 - 9 volt plugs and I can't figure out how they go together. If I plug in 2 batteries into the stalker it over heats. Anyone that can help me? I have attached a picture of the set up.