Chuyler1 get it straight, BOSE = Boy Our Sh*ts Expensive.
If you think the Bose system sounds crappy, you should come over here and listen to what many of the sound systems are like in these Italian cars (F'in kidding me). My Italian friends love to ride with and listen to the stereo. That said, I have to say the dumb idea of using a paper coned speaker was not well thought out. The door has no plastic vapor barrier to protect the back of the speaker, so when you roll the window up and down on rainy or damp days, the speaker gets wet. I mean they could have used at least a wax impregnated cone. I have had to replace one door woofer because it was water damaged/warped.
I attempted to replace the door speakers with an Infinity Kappa, with variable impedance, but they just didn't cut it. Like stated, you either have to go all or nothing with a Bose system.