I have an outside light that obviously at some point had a switch installed just inside the front door. It is now hardwired together with 2 grouped wires each containing a white and a black wire. They are simply taped together and covered with a piece of paneling. To turn off the light you have to remove the light or cut the breaker which goes to more than one source. The switch has a + and - screw and the ground screw. How would I wire this up? Any help is appreciated, Thanks.