diff --git a/overlay/opt/emcomm-tools/bin/et-audio b/overlay/opt/emcomm-tools/bin/et-audio
index be89593..cdc5046 100755
--- a/overlay/opt/emcomm-tools/bin/et-audio
+++ b/overlay/opt/emcomm-tools/bin/et-audio
@@ -117,19 +117,6 @@ update-config () {
 
            et-log "Applied amixer settings for ${ET_DEVICE_NAME}"
          ;;
-         "FX-4CR")
-           # Unmute the PCM and set the volume to 21% to get the full output power. This value is
-           # dependent on the settings defined for the FX-4CR in the et-radio notes. 
-	   amixer -q -c ${AUDIO_CARD} sset 'PCM' 31% unmute
-
-           # Set "L/R Capture" to 55%. Adjust if you can't decode received audio.
-	   amixer -q -c ${AUDIO_CARD} sset 'Mic' 67% unmute
-
-           # Disable Auto Gain Control
-           amixer -q -c ${AUDIO_CARD} sset 'Auto Gain Control' mute
-
-           et-log "Applied amixer settings for ${ET_DEVICE_NAME}"
-         ;;
          *)
            et-log "No ALSA configuration specified for this ET_DEVICE."
          ;;
diff --git a/overlay/opt/emcomm-tools/conf/radios.d/audio/bg2fx-fx4cr.sh b/overlay/opt/emcomm-tools/conf/radios.d/audio/bg2fx-fx4cr.sh
new file mode 100755
index 0000000..458e611
--- /dev/null
+++ b/overlay/opt/emcomm-tools/conf/radios.d/audio/bg2fx-fx4cr.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# Author  : Gaston Gonzalez
+# Date    : 13 October 2025
+# Purpose : Audio settings specific to the FX-4CR
+#
+# Preconditions
+# 1. Supported audio interface is connected and properly detected
+#
+# Postconditions
+# 1. ALSA settings set on ET audio device
+
+usage() {
+  echo "usage: $(basename $0) <ET audio card> <ET device name>"
+}
+
+if [[ $# -ne 2 ]]; then
+  usage
+  exit 1
+fi
+
+AUDIO_CARD=$1
+ET_DEVICE_NAME=$2
+
+# Unmute the PCM and set the volume to 21% to get the full output power. This value is
+# dependent on the settings defined for the FX-4CR in the et-radio notes. 
+amixer -q -c ${AUDIO_CARD} sset 'PCM' 31% unmute
+
+# Set "L/R Capture" to 55%. Adjust if you can't decode received audio.
+amixer -q -c ${AUDIO_CARD} sset 'Mic' 67% unmute
+
+# Disable Auto Gain Control
+amixer -q -c ${AUDIO_CARD} sset 'Auto Gain Control' mute
+
+et-log "Applied amixer settings for audio card ${AUDIO_CARD} on device ${ET_DEVICE_NAME}"
diff --git a/overlay/opt/emcomm-tools/conf/radios.d/bg2fx-fx4cr.json b/overlay/opt/emcomm-tools/conf/radios.d/bg2fx-fx4cr.json
index 6c39035..cc4c407 100644
--- a/overlay/opt/emcomm-tools/conf/radios.d/bg2fx-fx4cr.json
+++ b/overlay/opt/emcomm-tools/conf/radios.d/bg2fx-fx4cr.json
@@ -9,6 +9,9 @@
     "conf": "data_bits=8,serial_handshake=None,stop_bits=1,rts_state=OFF",
     "pttOnly": "false"
   },
+  "audio": {
+    "script": "/opt/emcomm-tools/conf/radios.d/audio/bg2fx-fx4cr.sh"
+  },
   "notes": [
     "Short press [PWR], then rotate AF knob until POW = 5.0",
     "Toggle [SSB] button until both USB and DIG appear",
diff --git a/overlay/opt/emcomm-tools/conf/radios.d/xiegu-x6100.json b/overlay/opt/emcomm-tools/conf/radios.d/xiegu-x6100.json
index 274cba9..3e71fa6 100644
--- a/overlay/opt/emcomm-tools/conf/radios.d/xiegu-x6100.json
+++ b/overlay/opt/emcomm-tools/conf/radios.d/xiegu-x6100.json
@@ -9,7 +9,7 @@
     "conf": "timeout=1000,retry=1,timeout_retry=1",
     "primeRig": true
   },
-    "audio": {
+  "audio": {
     "script": "/opt/emcomm-tools/conf/radios.d/audio/xiegu-x6100.sh"
   },
   "notes": [