Do you just put the dynamat on the exposed metal parts?
i eventually did everything in the trunk, but if you just wanna put one or 2 sheets in the points in the trunk that are bad, you can lay 2 inch strips in the spare tire well, and along the floor boards, and a few on the upper shelf where the rear speakers are, it took me about 10 sheets to do the whole trunk, plus if you really wanna fix the rattling, you have to do the front doors and the roof as well, and of course the trunk lid, the floor of the car is pritty good stock but it can be done too, i didnt do mine and im running 1600 watts rms and over 3000 watts peak, and it doesnt rattle so it should be fine.
