Question Vintage Receiver not working with Bluetooth adapter

Jul 18, 2021
I recently got a Pioneer QX-949 and it works completely fine other than the fact that a new Bluetooth adapter I got doesn’t work with it. I’ve tried multiple connections and none of them work. All I get is a constant humming sound, the music from my phone doesn’t play at all. Do you all have any insight? My next idea is to try the adapter on a different receiver to see if the Bluetooth adapter is faulty (I doubt it)