I also keep my windows up when I'm playing my music loudly, I think that's the way to go. There's no reason to not listen to good music at a reasonably high volume, and with the windows up it's not obnoxious.Okay, I have to say, I love bass. I love bass in my car, in the truck, in my house but I am not a jerk when doing it. My windows are up and its still at a level that is not "disturbing the public", so while I get it, I still think some people could be better bass enthusiasts like yours truly.
(otherwise they are just idiots that do not deserve to have an auto)