MacOS Volume fine control from bluetooth device as default

Hello, I have a bluetooth volume control device and I'd like to change the default behavior of the macos volume increments to the small variation. Or maybe put another way, capture (and disregard) the volume up and volume down commands from the device and change them to the small-increment behavior with KM. I dont see a hotkey trigger in KM that will fire off a macro when those system events happen, but I do see a USB Device command trigger that works, but it doesn’t disregard the initial volume commands, for example. Does anyone have any insight as to how I would accomplish this?

As a followup, Karabiner Elements took care of it.