Will Slim Line Subs fit under 2001 ford sport trac?

[Taylor]

I have a 2001 Ford Sport Track with a JL audio 10w1 i think under the the back passenger seat. It is alright but I am wanting something alittle more powerful but still will the cleaness of a JL. I see JL has a slim (TW5) and I was sondering if any one knows if that could be installed under the seat or behind The seats in the back. Or know of any other good subs that would fit under the seat or behind the seat that give more power then the 10 inch i already have