Many thanks. Is there some kind of splitter I could employ rather than getting a whole new player?
My gut tells me ‘no’, as you don’t want to duplicate the signal but rather send the audio component a different route - I assume this is somehow ‘split’ within the player as it decodes the signal.
BUT
It does look like this may do what you want:
https://www.hdfury.com/product/integral-4k60-444-600mhz/
AVSForum users discuss it briefly below, which sounds like your ‘use case’:
Had no experience, but perhaps someone else has.