Hello. I've messaged before. I'm using diagram 75881. The person I talked to already said it's the right diagram. He told me to cut all the wires on the 15pin connector. So I did just that cut them all, wired the black and red into pin 1 and 5. Tryed to program it. Did not work. Also had no power in the car. So I wired the factory wires 1 and 5 back into the 15 pin connector and spliced the fortin wire into that. I can put the 4 pin (black) connector in and the 3 led lights light up. Now if I tryed to hold the button and connect the 4 pin it should program. But it doesnt. What is the problem. Before the guy told me to cut all the wires and just the 2 from the fortin harness in pin 1 and 5. But that gave the car no power.