What should i do?

[thumpin s10]

hey everyone ive got a 98 s10 extreme regular cab and i have been wanting to upgrade the system but i have no room behind the seats. not even a small box will fit. what should i do and where should i do it? thanks

[x5-452]

passenger seat... lol... tell ur buddies to ride in the back!!
just kiddin... but... seems like uve got no more options

[subdude]

Blow thru is about your only option if you want any serious SPL.