Hello, we recently traded our CT in, and have a custom subwoofer enclosure to sell. It was custom fiberglass made to fit in the rear passenger side corner of the trunk. Looks factory, and is completely removable. Currently houses an 8" Kicker sub. Please let me know if anyone would be interested! Enclosure is located in So Cal. It's a little heavy but we could discuss shipping options. Box cost $350 to build.