I drove around for about 3 hours(without music and with music on full blast with full subs and bass), after full reinstallation with the tint.

And personally there is not one bit of rattle, and the subwoofer at full range and volume causes no rattle either. As I said~ it's really tight (pause).

Personally I'd recommend just cutting the peice off. The 8mm bolts and the tight space keeps it in place. And it makes it easier to remove the rear panel whenenever you need to. Not that I expect to do this again lol.