Matthew_k, The more I'm looking into this, it looks like the best route! It's only about $50 and will completely protect my player. I'll probably just use the remote to control it so it never sees any dust. Too bad it only comes in white, but that's livable. Looks like the only hard part will be bolting it to the floor w/o hitting anything important under the floorboard. Thanks for finding that for me..

Looks like it'd be a good solution for people with "non standard" installs. Like someone with an old Bronco or Jeep could mount a head unit to the floor.