"dark switch" for headlights
Anyways, my point was that a modification should always be done with as few side effects as possible. I'm not saying that the way you did it is necessarily wrong but the extra ten minutes to put a jumper on the sensor leads would have disabled the automatic headlights without affecting any other system. Besides, he also asked about adding a switch to allow re-enabling the automatic headlights (which is easy to add to the sensor leads).





