havent tried it, but i see armband cases for mp3 players, should be able to make it work on top tube or stem somehow. also, look at cell phone cases at the dollar store, might find one the right size for your radio. maybe bend the beltloop piece around your bars,or be cool and drill a hole in it and use your stem bolt to hold it on. i believe there are bags made just for this purpose. i keep my mp3 in a cell case clipped into my hip pocket,if i separate from my bike for some reason, it stays with me and i dont have to take out earbuds everytime i get off bike. some bluetooth headphones would be sweet, but arent cheap enough yet. and the standard disclaimer, i choose a volume that lets me hear traffic and my kids for safetys sake.