I want to retain most of my trunk space, and I don't want to do anything too crazy. I'm also planning on retaining the stock speakers, so I don't want the bass to be overwhelming, which is why I was leaning towards a 10 (or maybe a 12). Thanks for the welcome!! Why do you suggest the BL over the Q? I've just read a lot of good things about the Q series on other forums so thats why I was thinking about it.