I am building a sub enclosure that will sit in the left side of the trunk, will be able to house decent size 10" or possibly a 12" sub. It will take up the space I think is pretty much unusable on the left corner. Quality of this enclosure will be very good. It will be 99% fiberglass and there will be a wooden ring to get a good grip for the mounting screws. I will be happy to share some pictures if anyone is interested.

I know this is my first post and no-one knows me but you are welcome to check out my current enclosures I have for other cars and you will be very impressed. We are well known in the 350z, BMW, Supra, WRX, EVO and Viper RT/10 community for our enclosures.

I am not sure if it is OK to post a link but here it is. http://www.wickedcas.com/gallery/main.php/v/magicboxes/

The box we would built would have the same taste and flavor as the ones you would be viewing.
I will personally Guarantee the Sound Quality of these sub enclosures.