[Sonos integration] Sync all speakers all the time

Configuration
1

I own four Sonos speakers. Since I am living alone, I don’t need multiple speaker groups at all. So I want to have all speakers in the same group at the same time. When a speaker becomes available again (I have one Sonos Roam speaker not connected to power all the time), it should automatically rejoin this group.

How can I achieve this with Home Assistant?

Currently for reasons I don’t fully understand, a manually created group with all speakers changes from time and looses speakers. I am looking for an automation that fixed this issue automatically as soon as it appears or a solution which achieves the same.

Thank you for any hints and ideas!

2

Are you saying you want the Roam to connect and be added to the group when it’s powered again? The Roam has a charging state you could use as a trigger to run an automation with media player join to group the speakers or just add the Roam to the existing group.

Apologies if I misunderstood the question.