I had a couple extra subs laying around so decided to put one in the Jag. Doing a fiberglass enclosure that will sit behind the drivers seat where the rear seat used to be. When done I will cover it in leather to match the rest of the car. Here is my progress so far.

 

Wow, now that redefines "up close and personal"!
Keep us posted.

 

Yeah, that will fluff up his hair real nice. Cool looking sub.

 

When you crank it up I bet it will open the doors . Hope it doesn't loosen the glue and rivets on the body panels.

 

Yes it should have a decent amount of volume, that's why I decided to put 1 in and not both. However the sound quality is more important to me that the volume and these subs reproduce quality sound. I like it loud anyway and the stock sub just doesn't do it for me. These are rated at 400W RMS but I will only be pushing about half of that to it. I chose to put it behind the seat so I can still have room for luggage/golf clubs in the trunk.

 

What source are you using to connect to and what amp

 

Going to tap into the wiring for the factory sub, the amp has high level input. That way I can still control it via the infotainment screen. The amp comes with a remote gain controller that most people mount under the dash, but I want to find a way to integrate it into the ashtray (since it never gets used anyway) so it will be hidden unless I want to use it.


The amp is a Rockford Fosgate RF500X1D. Its a small, affordable amp that has great reviews:
Rockford Fosgate R500X1D Prime Series mono subwoofer amplifier — 500 watts RMS x 1 at 2 ohms at Crutchfield.com


The speakers are great, Ive had them for quite a while and they sound just as good as they did the day I bought them.
Kenwood KFC-W3011 12" 4-ohm subwoofer at Crutchfield.com