Home theater sub?

Do you think a home theater sub would work if hooked up in a wagon? I researched it and i read that an inverter wired straight to the battery would work. But now i wonder what size inverter do i need.
Heres the back of the sub:

Anyone know?
Heres the back of the sub:

Anyone know?
Comments
if u got the amp, sub and inverter for free, id say go for it
but i think u could hit up craigslist and find a sub and amp with box for less than the inverter will cost you...