Just FYI, I have a Kicker 10inch CompVR Sub...bout 6 months old For sale in the classifieds if you're interested. Like new, still have box, manuals, stickers, etc
I have an 04 Vert, and like you wanted to still use some of my trunk. I'm running one 10inch Kicker in a single enclosure with a Kicker Amp bridged to about 325watts RMS. Sounds damn good for one 10", and leaves me trunk space.
2004 GT Conv't
FLOWS, 3.73'S, BASSANI O/R X-PIPE, ACCUFAB 75MM TB, PLENUM, AND VORTECH V-3 SUPERCHARGED