JL Audio makes a stealth box that fits on the passengers side corner of the trunk but it was expensive and wouldn't fit with the Mach460 amp/enclosure so I built a custom enclosure on that side for 1 12" sub. It fit without having to take apart anything and you could remove the spare tire without removing the box. I was also able to keep the Mach460 speaker enclosure in there also. The internal volume of the box was 1.25 cu/ft.
I sold the one that I had so I don't have any pictures, sorry.
I could build one for you and carpet it with the same color carpet as the trunk material if you want. PM me if interested.
I have done 2-12W3 in SN95 34"W x 10"H x 13"D(top)17"D(bottom). Fit through trunk opening. You can go taller if non-mach or if you load the enclosure into the trunk from the back seat with the back seat taken out. Woofers loaded into the top. Without the mach pod in the way, you can fire them rearward.