Owner's Manual
Page 112
... HFS, cannot be played back on this receiver. SIRIUS radio messages Message Antenna ERROR Check Sirius Tuner Acquiring Signal Subscription Updating Updating Channels Invalid Channel Firmware Updating Cause Action Antenna is updating channels. The SIRIUS Connect tuner's firmware is being updated. Check whether the format... of file formats that the FAT 12, NTFS, and HFS formats cannot be properly played back on this receiver (page 48). See the list of your USB...
... HFS, cannot be played back on this receiver. SIRIUS radio messages Message Antenna ERROR Check Sirius Tuner Acquiring Signal Subscription Updating Updating Channels Invalid Channel Firmware Updating Cause Action Antenna is updating channels. The SIRIUS Connect tuner's firmware is being updated. Check whether the format... of file formats that the FAT 12, NTFS, and HFS formats cannot be properly played back on this receiver (page 48). See the list of your USB...