Sorry I don't have more infor for the a third gen. I installed the JL Stealth center seat sub in my '98. In that install you reuse the existing seat fabric so the match was perfect. The sound? Well a JL 10" is outstanding and the only thing you sacrifice is the center seat. That particular sub enclosure will only support 45lb, even though it looks like a seat.
I'm mentally planning my current stereo upgrade after installing my AVIC Z-2. Right now I htink I'll be going with the JL again center sub again.
Good Luck and I'd love to see photos if yo so it. The JL site leaves a lot to the imagination.....