3rd gen pre-runner 4 door woofer box options?

Need a little help with solutions for installing one or more subwoofers in my 2010 4 door pre-runner. I currently have mid grade kicker speakers in all 4 doors with an Alpine power pack installed but turned all the way down with the factory HU. I need to install bass blockers on the door speakers, subs and would possibly add another set of tweets or kids somewhere... I have worked in car audio in the past and am not clueless but don't see much of an option for woofers.

Thanks in advance for any advice... Oh yea and budget is not an issue.

 

Have seen several sub installs in double cabs but not 4 doors... Any suggestions?

 

They make a box for a pair of 10's or 12's (though I do not think there is enough cubic feet of air for 12's to function properly). Ebay is the very best place to buy them.

My signature link shows what I did with mine.