monitor.bluez.properties = {
    bluez5.enable-sbc-xq    = true
    bluez5.enable-hw-volume = true
    bluez5.roles            = [ a2dp_sink a2dp_source bap_sink bap_source ]
    # playback = phone audio auto-routes to the default sink (the Volt). This is the key line.
    bluez5.media-source-role = playback
}