I didn't know if anyone was thinking about the under seat storage so I thought I would show some pics of it. First thing you can't use this if you are planning to put in the under seat subwoofer as it goes in the same place. The storage unit itself is a lot bigger than I thought it would be. I was thinking of something just a little bigger than the grizzly one but you can put a lot in it. One of the pics shows it beside the stock rear tire so you can get a perspective of it. It does have an internal drain plug too so if you want to use it as a cooler. The thing you see in the first pic is not the drain, it's in the very bottom. That is just a post for one of the mounts that holds it in place.
It is somewhat time consuming to put in because you have to raise the console and completely pull the floorboard panel out as well as the seat and the cover panel under the seat. Overall I really like it.