How do i hook up on top of the car police lights?
It is highly illegal (on public roads) anywhere in the United States. Only emergency vehicles are allowed red (apart from brake lights) and blue lights. If you have an AMBER light bar, I’m not sure that would be illegal. But those are caution lights, and I’m pretty sure you could get ticketed for using those when you don’t need to, as well. (Like say you were escorting a truck with an oversize load or something.