only thing with mounting amp on floor. drilling into sheet metal for mounting is bad.. will cause rust and holes in your floor.

also if you get a lot of snow or rain and get in your cars with wet or snow covered feet, you might get the amp wet.. whether that is just enough dampness for the housing to corrode, or actually wet to short something i cant say, but i have done both.

also rear passengers with big feet might kick it.


if you are worried about loosing trunk space, you could mount it inside the 1/4 panel. i have seen this done before. you just need to have the right size amp and some skill.