I’m trying to install some LEDs in my footwells. I have a pink wire, which is my positive, and a gray wire, which is my negavtive. This is a negative switched circuit. So, is it ok to hook it up like this? 1 Positive of LEDs to pink, negative to gray. 2 Then, use a diode on the gray wire, with the stripped end pointing away from the leds back to the gray. Now, on the non stripped side of the diode, add a wire which connects to a switch. Then, connect the other side of the switch to the ground on my cigarette lighter? The first part works I know. But can I just use a diode? Or do I need a relay? I know the second step functions I just want to know is it safe? Also, if the second isn’t safe, would it be safe to ground it to the car instead of into the cigarette lighter? Thanks! Oh- finally, if that does work, does the ground of the cigarrette lighter function as a ground 24-7? Or only when the car is on?