I have the Zumo 550 and was wondering if there is a way to listen to the directions through the speakers of the bike and also, did you hardwire the Zumo mount to the bike or are you using a cigarette plug? If you hardwired it, was it hard to do and is there a link for instructions? Thanks for the help! I enjoy just getting on my bike and ridding and then using the GPS to get me back home.