The most old-school speaker system for scooters that I have ever seen was actually a self-made combo of cassette player + speakers, it was a long time ago so by now it shouldn’t come as a surprise to see Clarion (manufacturer of car audio speaker systems) to come up with the DXZ475RC:

A Drip-Proof CD player for scooters with a remote that can be attached to the handlebar.

The remote (as you can see on the picture) features volume controls and basic functions such as forward, reward, play and pause. There is also a small display that provides information about the number and length of each track.

The CD player itself will be located in a safe area of the bike, I don’t know where but it should be in a good spot to help it being drip-proof.

[Via: Akihabara]