Hi @KennyRichards,
Welcome to the Sonos community. Thanks for reaching out to us and letting us know about your concern. Let me help you out with this.
Upon checking the status, there is no outage report for SiriusXM. What you have encountered caused by network communication, either between Sonos devices and your router or between Sonos and the internet.
I'd like to ask some questions to isolate the issue so we can create a path towards resolution.
1. Any changes in the network recently like a new router or new WiFi name and password?
2. Have you tried removing and re-adding SiriusXM on the Sonos app?
3. Have you tried to separate your 2 Play 1’s and test playback on each speaker?
Let us know how you get on with the advice above. We'll wait for your reply. Please feel free to reach out in the future if you have any other questions.