I was so excited when I bought this item because there aren't many accessories for the Zune. I was so disappointed when I plugged it into the car and Zune and got nothing but an annoying high pitched buzz or hum no matter which channel we tried.Satechi cheerfully offered to refund my money but I never got around to sending it back. Oh well -- I can use it as an expensive Zune charger for the car, I suppose.