I would like to know if it's possible to wire two power sources to one three position switch with six pins, this is for my foot's well lights in my car the problem I have is the original lights I have wired them to switch off when the car is running and I would like them to stay on so I was thinking if when I switch the power source over when the original source switches off I could switch it over using the switch to the other power source. is this possible?