Late to this thread, but just in case anyone still has one of these: I built a proper custom integration for the Busch-Radio iNet (8216 U) – media player entity with real-time state updates, now-playing info, album artwork, and optional device settings entities.
No YAML workarounds, no polling, no cloud. Available via HACS as a custom repository.
[Custom Integration] Busch-Radio iNet – wall-mounted internet radio, fully integrated