I always keep some things to myself just to have a little competitive edge. But tonight you will see how I make low low loud bass.. This mod isn't for everyone. But if your REAL adventurous this is how you do it...
First your going to need to take out a whole lot of stuff.....1. Seats 2. Rear splash panel 3. Top deck, side plastic 4. Roll hoops and roll hoop plastic 5. Storage doors 6. Plastic panel behind seats. 7. Both storage pods.
The main thing is you have to remove both storage containers and seal them. Use a 3/8 sheets of plywood to seal the whole front of each side. Use a rubber gasket between the wood and the plastic lip. Use metal clips and stainless screws. Drill access holes for the factory screws to pass through. Then install subs if choice. Then put front plastic back across the whole rear section. The 3/8 plywood won't hold the plastic off enough to notice.
Here are the pics that show enough info to give you the details on how it's done.