Keep in mind that in the Box, you have a fair amount of noise to deal with in listening to your stereo. Road and engine noise (a low car, fat tires and an engine right behind your head) all conspire to interfere with sound from your system.
With the top down, the issues compound greatly.
Simply put, this is not a Lexus and these issues may make discretion the better part of valor.
Also it might help to keep in mind that it is not REALLY a baby, but a car. A great car but a car nonetheless.
This thought might save you a ton of dough, no?
Best of luck