Firestick Alexa and Sonos

You should be able to use the voice assistant on any Alexa enabled device to control Sonos. Just set up the Sonos skill in the Alexa app and discover your Sonos devices. They should all show as available.

Oh, had no idea! Just told the Fire Stick remote to play some jazz in the kitchen, and the Sonos One started playing. What fun!

Oh, had no idea! Just told the Fire Stick remote to play some jazz in the kitchen, and the Sonos One started playing. What fun!
You can even use the Amazon Music app, or other Amazon apps with Alexa built in, to control Sonos with the assistant using your mobile devices.

I have a firestick and use Amazon Music Unlimited. I have received a Sonos one as an ISP customer perk. I've set the Alexa skill up and linked to my Sonos account but if I ask Alexa to play X on the Sonos it just tellse it cannot find a device called X despite it fully being set up as a smart home device. Will this functionality only work with a Sonos One due to Alexa, surely I should be able to route the audio??

Did you discover devices in the Alexa app? Need to...

Yep device was discovered and is visible in devices... I can stream directly from the app on my phone and it works fine but if I try to use Alexa to play from my AM:u account it says it can't find a device called what my device has been successfully labelled within Alexa.

If you're talking to the Sonos One, does it work if you just say "Alexa, play some music?"

When using the Sonos One, room targeting shouldn't be needed to play on itself.

The Sonos One should be listed in your Alexa app twice, as a Sonos speaker for room targeting and as an Alexa enabled device.

I don't own a Sonos One. Its a Sonos Play:1 which I know doesn't have Alexa built in but as I understand it alexa can control smart devices as long as there is a skill for it which there is. Alexa app sees it and its listed as a smart home device. If I use the Amazon music app on my phone I can play to the speaker fine which has been named "living room" if I ask Alexa on my firestick to play music on "living room" it tells me it can't locate a device called "living room" you may need to add a skill in the Alexa app. Which I have already done.

In the Alexa app (not the Amazon Music app), under Smart Home, do you have a device named Living Room? When you click on Living Room, does it say Connected via Sonos?

Yes