Sorry I opened up the can-o-worms - I did not want everyone to rip on you.
I went through the loud stereo stage when I was 16, everyone likes to jam out from time to time - just remember, the guy next to you might be having a really bad day, just been cut off in traffic, hate your taste in music, be looking to start a fight or even reloading
If you ever look back at something you did in High School or Grade School and think - I really made an ass of my self - in 10-years, that will be the stereo phase of your life.
The monsoon is alright - I was pretty disappointed when I first got the car, but after playing with the EQ, you can actually make it sound nice. It is not a set of MB Quarts (or whatever is popular now), but for something that is factory installed and you don't have to pull out the interior of the car and have rattles or broken panels for the rest of the time you own it - it sounds even better.
On a side note, I am not sure how the Sat. radio folks have gotten away with promoting quality. I would really like to listen to my Sirrus, but the sound quality is so poor that I just end up turning it off. What a joke IMO. It sounds like a used up cassette tape or low quality MP3.