I’m a bit unclear at what your trying to do here with the TV and Bose system.
The S10 is a Receiver Only, it accepts wifi, bluetooth, usb and network musical inputs but outputs the music only by 3.5mm jack for physically connecting to an amplifier or other Audio input.
if you want to use your laptop for Youtube Music, use a USB cable (the S10 will draw its power from the laptop). You then can either use the S10 3.5 mm output direct to an amp or connect the 3.5mm output to a bluetooth transmitter(very cheap on amazon).
I have just purchased a 3rd S10 as i find them incredibly useful as multiple room music sources all controlled via the Arylic Phone app which is very user friendly allowing you to switch music sources, control volume, pause and play plus other useful functions.
i mostly use Amazon Music and my own DNLA Music server but all of them are physically connected to Amplifiers by the 3.5 mm jack
I think you are trying to get the S10 to retransmit your music by Wifi or Bluetooth, it cannot do this its only a receiver.
I hope this helps