Owner's Manual (pdf)
Page 95
... until the update is invalid. ➡ Select a different channel. "Invalid Channel" : The selected channel is completed. "CH Unauthorized" : The selected channel is completed. "Updating Firmware" : Updating the firmware of SIRIUS tuner. ➡ Operation is invalid until the update is invalid. ➡ Select a different channel. "Check Antenna" : Something is wrong with the antenna...
... until the update is invalid. ➡ Select a different channel. "Invalid Channel" : The selected channel is completed. "CH Unauthorized" : The selected channel is completed. "Updating Firmware" : Updating the firmware of SIRIUS tuner. ➡ Operation is invalid until the update is invalid. ➡ Select a different channel. "Check Antenna" : Something is wrong with the antenna...