Denon Internet Radio via FritzBox

Obviously vTunes has changed its terms and conditions and now requires a payment of $3/year. This renders the internet radio feature of my Denon AVR-X2000 useless if I’m not willing to pay. (Not that they shouldn’t be paid for their service, but I disagree with the way they force users to use vTunes and suddenly change the service.)

The German Denon homepage thankfully provides a manual for setting up your FritzBox as media server for internet radio.

I’m running openHAB 2.5.2 on a Raspberry Pi 3B with the Denon/Marantz Binding.
In my sitemap I can select the input source which also included a few favorite internet radio stations. Selecting those would simply execute a command like:

EG_WZ_Hifi_command.sendCommand("ZMFAVORITE1")

In order to get it working with the FritzBox, I must select the source

EG_WZ_Hifi_command.sendCommand("SISERVER")

then select the FritzBox as server (server name can be configured), navigate to the folder “Internetradio” and select a station from there.

However I have gone through the Marantz Control Protocol but couldn’t find the commands needed to do those final steps.

Maybe anybody did already cope with this and got a working solution. Any help is welcome.

Thanks a lot and stay safe!

I’m facing the exact same issue, have you been able to find a solution?