How can I use Radio FM on my Sonos speakers?

1. Open the Sonos app
2. Tap the Settings in the bottom right corner of the app
3. Tap on 'Services & Voice'
4. Tap on 'Add a Voice Assistant' under the Voice section
5. Click on 'Amazon Alexa'
6. Click on 'Add to Sonos'
7. Select the rooms you want to add Amazon Alexa to or tap "Select All"
8. Tap 'Add Amazon Alexa' at the bottom
9. Sign in to your Amazon account and follow the instructions