Hey wakeman,
There is plenty of room for a sub
behind the kick panel.
The Panel is easier to remove than it looks.
You have to reach over it and all the way
to the floor to unscrew it. Or if it is impossible to reach, feel around on the
front of the panel for screws deep in the carpet
pile. They are there, and come out easy.
I prefer sealed subs myself.
Check out the Audioforms enclosure. It kicks
@$$!!!
http://www.audioformz.com