Is this working together? Or only with normal Amazon alexas?
Reply on a old post, but yes, I have got it to work with a Dot and a Sonos One.
Had some issues but found out the speaker got a new name, and not the regular one used by HA.
The normal ID (from Sonos in HA) is: media_player.bathroom <<< Doesn’t work
The Echo ID for the same speaker is: media_player.MyAmazonName_s_sonos_one <<<< This works!
Amazon Alexa needs to be added on the Sonos Device (from Sonos app) to show up as the new alexa_device ID.
Hope it helps if you did not get it working already 