Automatically connecting to Bluetooth

[mischievousmole]

I have Bluetooth set up for all three of my WiiM minis: office, living room, and basement. For some reason, my phone will automatically connect via Bluetooth to the office and living room -- usually overnight, and, this time, at 6 AM while I was watching YouTube on my phone. With my phone (Galaxy S20+), the auto-connect happens when I power on something like Bluetooth headphones, which I want to happen, but is there any way for this not to happen with the WiiMs? Could this be happening when the WiiMs restart after updating?

 

[Jdamberger1]

One of my WiiM Minis has been Bluetooth paired with my Galaxy S9. I also have had this Mini connect on it's own, even when I have set the input to wifi. I have not been able to determine exactly what causes this to happen.