[demick]

So you're just going to put the big sub in the front trunk? That sounds like more a recipe for impressing (or more likely annoying) other people rather than creating a great sound system for people actually riding in the car.

Unlike putting a sub in the trunk of a conventional car where there is a thin seat between the trunk and the passenger compartment. The Boxsters' front trunk is completely separated from the passenger compartment. You've got a lot of metal, and the fuel tank separating you from your music.