I for one hate loud stereos. They piss me off just as they would anyone else. If it's not you doing it, it annoys people. They care to hear your musical preferences as much as you like to hear theirs.
If I want to hear a loud system, I get in my own car, get onto the highway and go at my own business.
I don't mind loud pipes or anything. My dad has a Harley and always has since I could remember (newer ones occasionally) so I guess I also grew up on them. That's one of the thrills of having one. They're loud and fun. Great for road trips. But not too long if you're not cut out for it lol. Sturgis is a great time...