Subwoofer in single cab 1st gen

Does anyone have Subwoofers in a single cab? I really want to put some into my truck but there is almost no room. I was looking at some shallow mounts as well, has anyone used these? Any one have some pics of how they got it setup?

Thanks in advance.

 

I made more room behind my seat by putting my spare tire tools in the engine compartment. Now i have room for my 6x9 boxes and other stuff back there.

 

I used to have single cab and I had a 8' Basetube in the back. Work good. Amp under seat and two 6 X 9 back there as well. Like Jraether said remove the tire tools plenty of room.

 

This is what I had, not to mention it's For Sale!!!




Edit: Found a picture of it mounted. The photo was taken with the bench seat in the second to last notch. You could have the seat all the way back.

 

They have premade boxes for a standard cab:
http://www.supercrewsound.com/commerce/catalog.jsp?catId=69

 

Thanks all, its good to know its actually possible to fit some in.