Thanks! Ordered a Startech Bluetooth NFC Wireless Audio Receiver - Black (BT2A) from BestBuy for 89.99CDN, hooked it up and it worked. Volume was extremely low, so I connected the BT receiver to my tape deck’s input, and I put in a blank tape, set to pause/record and can now control the volume with my recording level dial. Volume level is great and the sound is excellent. Now I can connect any BT transmitting device - including my Apple TV 4K. Excellent.