Hi @lhenriksson, welcome to the Sonos Community!
I’ve had a look on TuneIn and, while the station exists, I can’t test it myself as it’s region restricted.
Because of this, I would suggest you check your profile on Sonos.com as the station wont play if your address is incorrect. If you change your address, give the system a few hours to change over and try again.
If your address is correct, then have a look at your Google Assistant activity page. Check if the command you gave lines up with what was heard by Google Assistant as generally the system playing the wrong station is due to the voice assistant hearing something else. If the command isn’t what you said, clean the area around the microphone of the speaker and try again.
These are the two most common reasons for not being able to play a radio station, however it’s possible you’re running into another error. I recommend testing different radio stations and services with Google Assistant as, if they also aren’t working or are not playing the requested station or song, then it would be worth removing and re-adding Google Assistant to your Sonos system.
If you’re still having issues after following the above, please reach out to our support team for further troubleshooting, as they have the tools available to assist you in resolving this issue.
I hope this information helps!