Player.sirriusxm.com - Safari 15.0 with OS X 11.6 Stops playing when after about 6 seconds using Bose USB External Speakers

When using Safari to listen to SiriusXM, the music will play if using the MAC Laptop internal speakers MBP 2018), however when switching to external USB speakers, the music will STOP. Switching back to internal speakers will not recover. You have to RELOAD the player.siriusXM.com url.

When attempting the exact same thing, using Firefox, Version 91.0, I can use the Bose external USB speakers without any problem. I much prefer to use Safari - my Firefox is only used for a couple of work related sites that don't play well with safari, which is not part of this report.

Tried all the easy things, but this is very consistent... Again, this is 100 % repeatable. I'm NOT 100 % what the software versions were when this configured worked fine.

Happy to provide additional information or setting upon request.