I have an indiglo emblem, where the 'H" part lights up. Anyways, I have my emblem spliced into my parking lights, so that when they are turned on, my emblem lights up too. I used to have another indiglo emblem that died, and it had 3 rather than 2 wires to it, and it would be on with my lights, and blink when I would brake. My current one is just on when my lights are on.
