I would say (opinion follows).....

Lose the music...it can be dangerous and distracting.
Keep all the stuff that makes you feel safer and more visible to traffic when you ride.
Forget the people who tell you what to do with your own bike. Who died and made them king brain?? Tell them they get to decide what they want on their OWN bikes, as do you.

Sounds like you are having some GOOD TIMES on your bike!

Signed,
My name is Lisa and I am a Fred.