Not sure how to post pics, but here are the links to them. Sorry for the crappy quality. All i have is a camera phone. Hopefully it gives you the general idea. As I said above, I had to add more wood for my subs to fit. Have not carpeted it yet.

http://i24.photobucket.com/albums/c1...a65cd9bda6.jpg
http://i24.photobucket.com/albums/c1...bd0c05fffd.jpg
http://i24.photobucket.com/albums/c1...2788e8090e.jpg
http://i24.photobucket.com/albums/c1...b3864ad259.jpg
http://i24.photobucket.com/albums/c1...d414096615.jpg

I also had to adjust the handles to release the back seat. You can see in the third picture. There is a screw holding it on. Just took the handle off and turned it.

 

http://www.hifisoundconnection.com/S...id/0/SFV/30046

This box is downfiring andcomes with rectangular cutouts and then an extra layer of board over the cutout to allow for greater mounting depth in the area of the subs. I have this on my 99 ram quad with 2 -10" phoenix gold rsd10d's that do 500W RMS with large magnets. I only had to shave a little bit of the edge of the inside where the cutout is at on the inside to allow for the large magnet. It doesn't open up a hole or anything like that. These subs are 5.6" mounting depth. This box works great and doesn't vibrate or have adverse noises or come into contact with the floor. This is what I was worried about when I took the plunge. It's well built. No modifications to the seat are needed. Plenty of airspace for good subwoofer effect. No droning or vibrating whatsoever.

http://audioenhancers.com/catalog_dodge.html#DX this is from the company. It has what I described above as a power pocket to increase mounting depth of the sub, if you click on "pp"

 

heh heh .... that's where i got my box... got two infinity reference 10's crammed in there. works great for me. i've got some pics in my gallery if you want to check it out. also have a kenwood 1100 watt amp powering them... oh the thump... yum yum

 

I wish the downfiring boxes could hold 12's .

 

You could run 12's, however you'd need to shave more where I shaved on the inside to get them to fit with this box. I'll tell you though, running two 10's at 500rms each cleanly without vibration, etc. is fantastic. I have to turn it down way to much. My heart starts to miss a beat and I can't breathe it's got sooo much bass.

 

I've got a 10" Kicker in a box sitting on my rear seat. It makes it so one less person can ride back there though. I hate it and wish I had a box or something for under the seat. I have taken this out and left it out for a while do to the fact that it looks stupid and takes up too much room. I like how it sounds but hate how it looks.