I have a couple questions on wiring. First is how to wire my universal wiper motor. It was just laying on the floor. There are three terminals on it a (-)and (+ )and and (S ). Can anyone help with this? I know (-) is probably ground and plus is hot but what is the(S)? I looked on line and nothing at all. Second while wiring the LED turn signals. I can only them to work if I touch a ground to the signal wire it's self. Does this mean I need to add a ground to the taillight housing? It is confusing because if I take the lense off there are three wires. A red and a black and a white. But, only two wires come out the back. They are black and green. I hooked the black wire to park and they work. I hooked the green to the signal wire and if I touch a ground wire to the hot signal wire they work fine????? If you can help I would really appreciate it! Thanks!!