Yea I got the third row too. I wonder if dimensions behind the third row are the same as a truck and you could just get a box for that truck and it will fit in the H2?

 

I'm more interested in getting a speaker placed into the trim. I saw someone had put a sub on the back door (on an H3), which looked nice and out the way. I don't want to remove the rear seats, and can't lose what little space i have left in the back!

 

Reckon there's room to fabricate something out of this ?
Hummer H2 Trunk Lid Lift Gate Cargo Hatch Interior Trim Panel | eBay

I have black interior, not sure if they could match the colour that well on it. Or maybe it would be too heavy to lift, not sure. As i said I read someone else had done something similar.