I was having an awful time yesterday using a white noise file to drown out office sounds. My Bluetooth connection kept dropping for a few ms and the white noise

I was having an awful time yesterday using a white noise file to drown out office sounds. My Bluetooth connection kept dropping for a few ms and the white noise would cut to silence. So I rooted around and found the proper analog cable for my Bose to plug in to the MacBook Pro. No hole.