how to use car door light switch? Answered
ok so i have added RGB led strips to my car with common +12v and i want to add foot light when the door is open.
the door switch uses ground (-) my led strips have 3 (-) grounds one for each color and when certain color is selected the each have different resistance* (i think) so cant connect 3 wires to door switch.
is there a way (beside using a relay) or a switch where i can use ground to turn on/off +12v wire?