yes actually i have, but dunno how i would seal of the trunk completly.. but if i do that i would like to deaden my trunk at the same time, box is a PITA to get out, gotta remove my whole back seat, bottom and backs, not just fold them down.. theres only 1/4" left that the box can fit, it was built to the exact maximum.. so if ima take it out ima do everything so i dont have to again lol, which once i can get my hands on enough deadener.. good deadener not shyt that is