I just got my new Wagoneer this past weekend. I have had 4 Jeep Grand Cherokee Overlands. My last Overland had the ability to have music on and SD card. The Wagoneer does not, but does indicate that I can use a USB flash drive. I'm not sure what I'm missing, but when I select the USB option, it tells me to connect a device.....which I have. It just doesn't seem to find it. Is there a particular format that these have to be in? This particular device is formated as exFAT. My only other option is NTFS. Any help is appreciated.