I'm trying to get some clear info on head units and using usb storage. I've been getting really mixed info when doing google searches. I'm trying to figure out the details of what it takes to be able to use usb storage instead of CD's. I've read that some units are able to read 32gb usb devices, so long as they are formatted in fat32 and the files are organized correctly on the drive. Manufacturer info seems to be vague, and they usually just say something to the effect of "accepts usb storage devices" and that's as far as it goes. I'd like to hear from someone actually using a usb drive, and find out what the limitations are as far as size and file structure. I've also read complaints about difficulty being able to access certain subfolders, and the navigation aspect being really clunky and difficult to work with on some units. I'm trying to choose a head unit to begin a simple SQ install, but there are too many question marks regarding the alternative storage that I can't seem to get definite answers to. Ultimately, I'd like to be able to use a 32gb (or larger?) storage device to dump a bunch of lossless music on, and find a head unit that will allow simple navigation and playback of those files.