There used to be a sticky in "how to" but the link is broken. I have a LED add on for an alarm that I have had forever.(i am adding on to factory alarm) Can anyone tell me how to hard wire it so I will come on when the red theft light comes on(when I get out and lock the car) There are 3 wires coming from the LED.(black, yellow, red) I know Black goes to negative, red goes to positive but where does yellow go? Thanks in advance.