08/29/2026
It’s super easy to add Bluetooth to almost any stereo receiver.
The adapter I’ve been bundling with my systems is from KAIY. It has RCA, 3.5mm AUX and optical outputs, plus Bluetooth 5.3. Setup is simple, and the ones I’ve used have been very reliable.
They’re around $15 on Amazon. Add a USB-C power brick and for under $25 you can stream Spotify, Apple Music or just about anything else from your phone through an older stereo system.
If your receiver has an optical input, you can even keep the connection from the Bluetooth adapter to the receiver digital.
Here’s the one I use: https://a.co/d/0aiv4dbf
Transform any wired audio system into a modern wireless streaming hub with this premium Bluetooth 5.4 Receiver. Designed for audiophiles and everyday listeners alike, this adapter bridges the gap between legacy hi-fi equipment and today's wireless devices — without replacing the gear you love. At....