Last month when I went to check out some speakers at tweeter and I was messing around with the Alpine radios. let me just say that the higher end alpines were VERY annoying to use for the simple reason that once you go into any of the function or menu screens it basically freezes you out of any other function. I don't know if I explained that very well but basically you can't turn the ****er down until you hit the ONE button to exit the menus...i have an older alpine and it doesnt do this...i hope mine lasts long enough so that they figure out this is the most annoying thing ever and fix it...