Cee-Jay
Sasquatch
Those are the qualifier words that would give me concern along with others who prefer to enjoy the wilderness as close to city music-free as possible. Myself, I have never bothered anybody with tunes. I leave 'em in the city, they be there when I get back. Further, I go so far as to close my car doors as quietly as possible especially in dark hours, and I keep my voice low when talking. But then we are getting into camping etiquette, which is a whole other more intensive discussion. Simply offering a perspective that may be overlooked with regard to "camp stereos", a pair of words that are mutually exclusive in my book.
I hear you and respect your opinion... and I think it is all relative. For example, many people think that vehicles and wilderness do not go together. I am sure that my noisy, exhaust spewing vehicle spoils the experience of hikers at times and yours probably does too... unless you know for sure who is in the next canyon over. We all draw our lines in more or less arbitrary places. All that said, I appreciate your comment and will think of you next time I consider putting on some music.