yeah i had to figure it out the hard way. After I put in the switch and started the car I flipped the switch and nothing happen. I got pretty pissed wondering what I could of done wrong lol. I flipped the switch back and turned my car off before the lights had a chance to turn off. After about an hour of double checking everything I just gave up. Later that night i was heading over to a friends house and flipped to switch to the resistor for no reason and nothing happen at first (obviously) but a little later my headlights shut off while i was driving and it scared the crap out of me haha. So I kept messing with it and figured out the whole timing thing.