Bluetooth disconnection notification

[Notification]

How do I turn off the audible notification (annoying tune) that plays every time a Bluetooth item disconnects. It could be my car, my smart watch or a head set.  I have tried everything and the only change I can make to turn the media volume down as far as it will go but this still doesn't silence it.  It goes off if the phone is set to silent or do not disturb. It appears to be controlled by media volume.  I am using a galaxy s7 edge.  Any advice be welcomed. Thank you 

[DannyT]

Hi there, @Notification.

Does this still sound even when System Volume is turned all the way down? Go to: Apps > Settings > Sound & Vibration > Volume > System. Turn this all the way down.

[Notification]

Hi Yes, still makes the noise when I have the system volume down too.