Hi there,
I frequently use my Sonos system to stream live radio, and I exclusively listen to add-free stations. In the past, TuneIn Radio, and then Sonos Radio have worked perfectly well for finding and streaming my preferred stations, but over the years both services have added more and more pre-roll and even “mid-roll” advertisements overlaid on top of the original stream.
The best solution I have found for this annoyance is to load the Streaming Station URLs manually in the Sonos desktop App. It is a bit of a pain, but it a one-time pain, and way better then listening to the ads. But I really do miss the station artwork.
Please add the ability to load custom artwork alongside custom streaming URLs in the Sonos app!