I have a 2016 Refresh Model S 90D with XM radio, and have had no issues with it for the 4 years or so i've owned it, and today when i got into my car, the XM radio button had vanished. I've reset the MCU a few times, and sent a refresh signal, but the button just seems to have vanished, it doesn't appear in the list of sources either. Has anyone else had this happen before?