I have a 2nd edition 80gb Zune. I have it connect via USB to my 08' Edge with Navi and it works great. The only thing I have had problems with, and im pretty sure its an issue with Sync, is the play similar feature. I have over 60gb with of music and when I did a play similar after listening to Jay Z it pulled up a single Mariah Carey song and could not find anything else. I thought it was really strange.