I've had 2 12" subs in my KJ for about a year or so now, and the rattles are starting to get to me. I feel like a ricer for having such obnoxiously rattly bass. Obviously dynomat is what everyone suggests first, but the stuff costs a small fortune. Has anyone done anything easier (glue, duct tape, bolts, etc.) to the internal parts (sounds like behind the bumper) to decrease or eliminate the rattles!?