What I have been thinking about doing, but just like everything else until after Christmas have no money for is this. Getting an el-cheapo walkman, Ive seen them for 10-15 bucks with am/fm. Get some small stealthy computer speakers mounted under the seat, on the handlebars or anyplace you can fit them, and run an I-pod through it. I think that is about the lightest, and smallest option. Back in the 80's when I was rockin my Huffy Scout for hundreds of miles, I actually ran a walkman with a little speaker box, but that was before I-pods, so then you would never have to change out the casette! lol. (this post was in no way a cheap plug for the i-pod or walkman).