To each his own, I guess!
Here in IL, our city has a noise law for stereo systems, and the penalty is vehicle seizure!!
Nothing wrong with listening to some music while taking a break....what I fear is these kids jamming out while riding, making us all listen to the God Awful crap they call music.
What I fear is this....since our hobby already has a bad reutation for tearing up land, people hearing these guys radios and what-not will not tolerate it and eventually the land-owners will close the parks and tracks we ride.
Not to get holier than thou, but please show some dignity and respect for others while riding...that is all I am saying.