How to troubleshoot a non-functioning XM radio on my BMW?

I recently purchased a used BMW with XM radio, but I can't seem to get it to work. I've checked all the connections and even tried resetting the radio, but nothing seems to be working. Any advice on how to troubleshoot this issue?

First, make sure that you have an active XM subscription for your car. Sometimes, the previous owner may have cancelled the subscription. Second, double check all the connections for the XM receiver and antenna. If they are all secure and in good condition, try resetting the radio again. If all else fails, you may have a faulty receiver and it may need to be replaced.

I had a similar issue with my BMW XM radio, and it turned out to be a loose connection in the antenna. Make sure to check the connection between the antenna and receiver. If it is loose, try securing it properly and see if that fixes the issue.

If you have recently purchased the car, it's possible that the previous owner didn't properly transfer the XM subscription to you. I would recommend contacting XM customer support and providing them with the radio ID number to have them check for any issues with your subscription.