diff --git a/Aircraft/Instruments-3d/kx165/kx165-1.xml b/Aircraft/Instruments-3d/kx165/kx165-1.xml
index 7cb2d48e3..d312fc464 100644
--- a/Aircraft/Instruments-3d/kx165/kx165-1.xml
+++ b/Aircraft/Instruments-3d/kx165/kx165-1.xml
@@ -574,6 +574,28 @@
           </less-than>
         </condition>
       </binding>
+      <binding>
+        <command>property-assign</command>
+        <property alias="../../../../params/power-nav"/>
+        <value>1</value>
+        <condition>
+          <greater-than>
+            <property alias="../../../../../../params/comm-volume"/>
+            <value>0.05</value>
+          </greater-than>
+        </condition>
+      </binding>
+      <binding>
+        <command>property-assign</command>
+        <property alias="../../../../params/power-nav"/>
+        <value>0</value>
+        <condition>
+          <less-than>
+            <property alias="../../../../../../params/comm-volume"/>
+            <value>0.05</value>
+          </less-than>
+        </condition>
+      </binding>
     </action>
     <hovered>
       <binding>
diff --git a/Aircraft/Instruments-3d/kx165/kx165-2.xml b/Aircraft/Instruments-3d/kx165/kx165-2.xml
index f9105922d..399d2339d 100644
--- a/Aircraft/Instruments-3d/kx165/kx165-2.xml
+++ b/Aircraft/Instruments-3d/kx165/kx165-2.xml
@@ -573,6 +573,28 @@
           </less-than>
         </condition>
       </binding>
+      <binding>
+        <command>property-assign</command>
+        <property alias="../../../../params/power-nav"/>
+        <value>1</value>
+        <condition>
+          <greater-than>
+            <property alias="../../../../../../params/comm-volume"/>
+            <value>0.05</value>
+          </greater-than>
+        </condition>
+      </binding>
+      <binding>
+        <command>property-assign</command>
+        <property alias="../../../../params/power-nav"/>
+        <value>0</value>
+        <condition>
+          <less-than>
+            <property alias="../../../../../../params/comm-volume"/>
+            <value>0.05</value>
+          </less-than>
+        </condition>
+      </binding>
     </action>
     <hovered>
       <binding>