In my review of the guides above, none worked for me, but we all know how often the internet changes.
This example is based on iHeartRadio Smooth Jazz station
Using Apple's Safari Browser v15.2
- Find your station at iHeart's web page, and start the stream press the play ▶️ button
- Right Click on the page and select "Inspect Page" next follow the steps in the image attached.
Marked up Screen Capture
I'm using VLC player, so once you've copy the address go to VLC and open "File" and click on "Open Network". Paste the URL and press play.
You may save this as a playlist for playing later. Note: I have no idea how long this address will be good for. Enjoy