Sonos and Planet Radio
1. Open the Sonos app
2. Go to settings tab
3. Tap on “services & voice” option
4. Select the Planet Radio music service
5. Tap on “reauthorise account” and follow the steps to sign-in.
You can also follow the steps provided by Sonos on how to add a Music service to Sonos by following this link here
To find out more about Planet Radio and Sonos please follow this link here