Fahad1491

I downloaded a Sirius Xm signal twice to get updated channel list. Immediately the Command system starts restarting every 20 to 30 seconds. Everything works fine until the system restarts. I have checked all fuses. I have reset the Command settings. No codes or errors. Dealer thinks I have filled the hardrive space and the unit may not be able to be fixed. Any help will be appreciated. What to do next? Will a used unit from ebay work or is there a way to still fix this unit? My car is a 2009 CLS 550 with a production year of 2008