Why is my xm radio saying updating
If the adapters intact and secure, try to directly connect the antenna to the radio.
If when directly connected the “antenna” message is displayed, there is likely a bad antenna or antenna port on the radio.3.
If connecting to a power strip, make sure power strip is switched to the “on” position.
Try plugging the radio for business into another outlet in a different part of your office.
If you need more information regarding our Smartphone Apps for i Phone, i Pod touch, Kindle Fire or Android devices, please More details.
Information on where to recycle SXM products and information on where to recycle rechargeable batteries.
Verify that your Sirius XM subscription package includes ‘Internet Radio ’ this is an add on to your general subscription.
verify that your Grace Digital Internet radio is connected to your WIFI internet network and you are able to listen to other internet radio stations i.e. If you cannot listen to other radio stations or you cannot connect to your internet network you will need to first resolve those issues BEFORE trouble shooting your Sirius XM connection.
If using an antenna extension, make sure all connections between the antenna, inline amplifier, and coax cable are secure.
If all connections are secure, check the SMB adapters and make sure the little pin inside the male connector is not bent or missing.
Other potential issues and troubleshooting tips are provided below.
If you're still having trouble, contact Mercedes-Benz customer care for further assistance at 1-800-FOR-MERCEDES (1-800-367-6372).
But, with the system stuck, I have the same "stuck at 0% Sirius update" problem, and tried the signal refresh, but it did not work.