I don’t know why that wouldn’t work Nate. As far as backordered, Costco for some reason doesn’t stock these or even the hearing aids in the store, you must order. You won’t be depriving anyone, but yourself. As far as the splitter, I have used similar just to forward the signal to two items, one to the surround sound system, and the other to the TV connector. Now your idea of using the switch to access different sources of audio is a different approach. The only problem I would suggest is the wiring/location of those sources. For me the TV is across the room, and my computer is a laptop on the end table next to where I sit. Therefore it just makes sense for me to have a TV connector for each. Easy enough to push the link button/blue light, when turning either on.
Please anyone reading get the Mute as a low button hold on the hearing aids, this is such an advantage for a number of reasons, I have discovered. I mute when vacuuming or when making a smoothie, etc. Now an interesting thing is when you are streaming from either your TV connector or phone, you can Mute, which mutes the surround sound, not the streamed sound. So for instance the tv might be on a loud program, and you are streaming from your computer, you can Mute and cut out the ambient sound. In my shop I can listen to youtube music on my phone, and then Mute the hearing aid, now I can use any of my power tools, drill press, belt grinder, etc. and not be bothered by them. Or when watching TV/computer can Mute so a floor fan isn’t heard, it helps. Losing our hearing is bad enough, might as well enjoy the support of these new gadgets, etc. lol.
RDB