Sub box idea... thoughts?

[DFA]

ok, v2.0



Measured the false floor at 39.25"x20.25", designed the box for these same dimensions, it's 7" deep. Added convenience handle.

Inside sub box volume is 1.09cubic feet, manufacturer recommends 1.071, I think it's close enough. If not, I could easily make adjustments for it

I have a question tho, it might be kind of a "duuuhhh" thing, but I'm asking just to be sure :), the hatch will almost certainly be exposed to wet stuff sometime down the road (condensation from groceries, beer crates, etc), it's not like I'm planning on dumping buckets of water in my hatch for fun, but still,
Could this somehow affect my setup? I realize the sub box is airtight and all connections will be out of the way, I'm guessing the amp is more in danger in this situation, with the fans being on top of the lid, but I just wanted to make sure.