It's wondering and looking around. But has anyone upgraded there Sony Sound System? I didn't know if I should keep the stock box or if I could get another box under the same seat with a slightly bigger Shallow sub. Be Kool if someone had pics of the build. Lookin to upgraded the sub and amp.
I think you'd have more luck in the aftermarket and reviews section of the forum.
I've see a few guys on here take out their factory sub and install a custom built one and use the same holes to bolt it in.
You can probably find more info using the search, there should be at least a few threads with guys that have done this.