Finding stream details for radio station

So, I’ve read a number of threads that are useful for me - I want to create a dash with a single button to press so that my sonos will play a given radio station for starters. I’ve seen a few examples which I think will get me started, but there are quite a few replies of the kind of “it’s as simple as” and then they don’t cover any details - such as here - Play one radio stream by pushing one button

The detail that is evading me is finding out the stream details - media_content_id in the case of one example I’ve seen.

Can someone tell me explicitly how I find this for a station that I’ve got set up? I can’t seem to find it in radio browser or anywhere else.

Does this integration help you at all?

I’ve got RadioBrowser installed and running to a degree, thanks… but I can’t see how you find the stream details from it.