There are 2 switches for brake lights . One with cruise control , one with out . If you are getting the 4 connector switch then use the two terminals that are pointing to the driver . The two pointing to the left side of the car are for the cruise. I would start at the tail lights. Pull the brake light bulbs out of the sockets and then see if the wires are still getting hot . If the wires still get hot then you have a short some where . If not then reinstall the bulbs one at a time checking that the bulbs light and the wires are not hot.