This has been reported in emby theatre forum by another user since it is not available it should be a future request. In WMC it is slightly complicated you create two files with the link to your radio station a bit like pls files.    This is much better than tunein, tunein has too many cards and options this way only the stations you listen to will be listed there. With this there is no external app everything plays directly in WMC and you control it by remote.     This is WMC mcl file