Im about to be getting my car and my system is going in ASAP. I know I want a D2, but I cant decide which size. I would like to have a 15 since it gets louder and lower and I mostly listen to rap music, but will the 4.5 cu ft box fit in my trunk ok? I am getting a 1990 BMW 325is so it has a decent sized trunk, but how big is it gonna be really? Anyone have any pics of that sized box? Also, do you think I REALLY need the 15? I plan on running 1100 watts to the sub. This will be my first system so I really don't know a whole lot about the actually sound of things, just word of mouth. Yes, I know I will have to wait on a 15, but if it will work better for me thats no big deal. Thanks.