You need to ask the Deejay people to add themselves, point them to https://docs.sonos.com/docs/content-service-get-started

Just the regular Channel from Radio Deejay is available. The subchannel 30 Songs is not available. If they didnt put it, there will be another issue. I also asked Radio Deejaym if its possible to add it to Sonos. I am wondering if someone else, has the correct url/playlist to add it on Sonos?

i can add also by myself stations, why should this not work. They didnt add it, they have their reassons.

No answer yet from Radio Deejay. Any other suggestion how i can add manually Trenta songs ?

https://www.deejay.it/webradio/06/

This works for me:

1. Follow instructions here. Note that you need to add the “TuneIn (New)” service in Sonos app and not TuneIn that the instructions mention: https://support.sonos.com/en-us/article/use-tunein-to-add-internet-radio-station-urls-to-sonos

You can find a 128 kbps stream URL for Deejay Trenta at https://fmstream.org/index.php?s=Deejay

It is this that you will add in TuneIn iOS or Android app as custom URL:

https://streamcdnm8-4c4b867c89244861ac216426883d1ad0.msvdn.net/radiodeejay30songs/radiodeejay30songs/play1.m3u8

Note that you need to be signed in TuneIn app as those instructions say (you can add favorites there even if you are not signed in but then those won’t appear in Sonos app). Signing up is free, you don’t need a trial account. Just click top right in TuneIn app to skip the trial offer screen. 
 

Once you have added the custom URL in TuneIn app and favourited it there, it will appear in Sonos app under Your Services > TuneIn (New) > Favorites. You can then save it to also Sonos Favorites for faster access. 

I see. The mistake was, that i was not logged in to tunein. Now i can see it as favorite. I will check now, if its the correct deejay 30 songs.

Thanks!