Was at the dealer the other day and saw some speakers that look like turn signals that mount on the handlebars and plug into an mp3 player. Does anybody have any experience with these. I have a 2003 Roak King and would like to have some, but don't know if the 400.00 bucks they want would be worth it. Also don't really like the radio that they have that mounts on the windsheild. Also does anybody know if there a cheaper alternative out there.