Good points. Question though: if I don't wish to drill through the carpet (I might be trying this exact same install very soon), is it fair game to actually _hang_ it under the seat, provided there is a place to mount it that way? Then it's more or less suspended, but the idea is to keep it secured down.

The other idea I was kicking around was to use a whole mess of Velcro(tm), but if it needs airspace below it as well ... the hanging idea remains.