I was reading the install instructions on your Mobile HID light. I believe your kit came w/wire & relays & stuff since they want it wired DIRECTLY to the battery for power source. Did you do that? We've installed some SPEAKER (I think) lights from Sloan a couple of times. They never have been wired to battery. They work beautifully.

Here's your install instructions. Maybe not necessary?

http://www.mobilehid.com/support.htm