Help with subwoofer problem

I have a 2004 cavalier ls sport. I want some bass in the car, but I want to keep all my trunk space. I was thinking about getting free-air subwoofer or a amplified tube. If anybody has this setup please let me know how it works. Or any other ideas yoo may have. Thank you

Some bass with trunk space is an oxymoron.

haha yeah thats true.... if you dont mind spending a lot of $ then you could just get a really nice 10 with a tiny box... im sure if you dont mind spending a lot then you could get some decent bass with some trunk space left

u could always got out n get a 8inch bazooka nos sub/subs thats wut i did, u get a cool look n good sound.