HI guys I have the side mount led 2-wire kuyerkyn or however they spell, I have a 2008 rocker c, I see I have to pull 2 bolts, lift fender, and I see the wiring going to license plate light now, my question is, when I cut and re-route, which is ground and which is the run wire, there's only 2, I see a grey wire, in the black molding, im assuming there's colored wiring inside, if I test and wire backwards, will I blow led,etc? that's my concern...the plate is easy, black is ground, other is the running line, thanks in advance.....