Amplifiers vertically mounted so not too much weight (10 lbs).
What glue are products are you talking about specifically? My two concerns are really general vibrations/forces of driving the car making them come lose and in the event of a collision the amps becoming a flying metal projectile into the back seat.
Currently I've got the trunk base (painted), then a layer of Stinger Roadkill (aluminum side up), then carpet.
I'm guessing if I glue, I'd cut a hole in the roadkill down, strip the metal of paint, and glue to that for best bond.
So there's glue, bolt, and weld. Any other general options for affixing two pieces of metal to one another?
JF