I really enjoy ridding with and with out tunes. Depends on mood. It's funny but each of my MBs seem to end up with their own theme song that pounds in my head while ridding.
But I use a bluetooth speaker when I do have music playing. Watched this guy just jammin' out with head phones, on a scooter. I was literally envying him. He was just having a grand ol' time. Head bopping and singing at the top of his lungs. And I was in my car doing a rush, had to be there yesterday, delivery.
He drifted to the left lane and didn't see or hear the car racing up to both our left's. The car sounded their horn and didn't pancake the guy. But it was way to close! And ruined every one's moment. He quickly returned to the slow lane infront of me but was no longer singing and head bopping.
Tunes are some times a must but the head phones thing really are a safety/ joy of the ride issue/killer. Just my 2 cents. But that event really hammered it home for me. Killed the happy of that guys ride. And would have sucked for the other driver if he hit the scooter guy.
Ya can get the bluetooth to your cell really cheap now and they sound awesome! Can't believe the really great and quality sound those, even the cheap ones, can get you.
ful Zen of being out on the road 'at one with your machine'. 
