Ive been running my mini in the car for the past 2 days and it never seems to have a problem waking on usb. IE I dont have anything plugged into a hub just straight into the mini. I have my usb sound and usb touchscreen plugged it. Is the wake on usb perhaps not active on intel mini's? Also, is there a way to auto start playing the music again when the mini comes back from sleep? I hate having to press play everytime I turn the car on.