Sonos and TTS

[atomic loom]

I am trying to get a simple message play over my sonos speakers and can't get it to play.

I have Nabu Casa account setup, but I can't get it to play over my speakers. When perfom the action I can hear whatever is playing, but no sound comes out.
action: media_player.play_media
target:
entity_id: media_player.hi_jo
data:
announce: true
media_content_id: >
media-source://tts/cloud?message="I am very loud"
media_content_type: "music"
extra:
volume: 18

[gray aspen]

This works for me:

target:
  entity_id: media_player.kitchen
data:
  announce: true
  media_content_id: |
    media-source://tts/amazon_polly?message="{{ announcement }}"
  media_content_type: music
  extra:
    volume: 50
action: media_player.play_media