And the piece of great resistance, as in its fighting me tooth and nail. The reverse switch. I have read the previous posts, they're very informative. I tried to emulate the steps followed but with no results. Before delving into the project I crossed the wires that go into the switch and the lights did work briefly. Could I have burned something out? After the first flicker it did not work again. I tried running 12V through it to see if it responded and it did not. I pulled the switch and activated it manually while running current through it. the current lit the test light on the other side, indicating it was functioning. When I omitted the cars wires, green and yellow and gray and red, I was able to tell that the switch was working after having replaced the pin and that the pin was indeed the appropriate length. Because when I pushed current straight from a battery to one wire in the switch and activated the reverse gear my test light comes on.