diff --git a/PepperDashEssentials/Bridges/DmChassisControllerBridge.cs b/PepperDashEssentials/Bridges/DmChassisControllerBridge.cs
index 14fa580c..90eea6b1 100644
--- a/PepperDashEssentials/Bridges/DmChassisControllerBridge.cs
+++ b/PepperDashEssentials/Bridges/DmChassisControllerBridge.cs
@@ -206,8 +206,10 @@ namespace PepperDash.Essentials.Bridges
 
         public class DmChassisControllerJoinMap : JoinMapBase
         {
-            //Digital
+            // Digtal/Analog
             public uint SystemId { get; set; }
+
+            //Digital
             public uint IsOnline { get; set; }
             public uint OutputUsb { get; set; }
             public uint InputUsb { get; set; }
@@ -233,7 +235,9 @@ namespace PepperDash.Essentials.Bridges
 
             public DmChassisControllerJoinMap()
             {
-                SystemId = 10;
+                //Digital/Analog
+                SystemId = 10; // Analog sets/gets SystemId, digital input applies and provides feedback of ID change busy
+
                 //Digital 
                 IsOnline = 11;
                 VideoSyncStatus = 100; //101-299
@@ -261,8 +265,6 @@ namespace PepperDash.Essentials.Bridges
                 OutputEndpointOnline = 700; //701-899
                 HdcpSupportState = 1000; //1001-1199
                 HdcpSupportCapability = 1200; //1201-1399
-
-
             }
 
             public override void OffsetJoinNumbers(uint joinStart)
diff --git a/PepperDashEssentials/Bridges/DmpsAudioOutputControllerBridge.cs b/PepperDashEssentials/Bridges/DmpsAudioOutputControllerBridge.cs
new file mode 100644
index 00000000..cb144f3b
--- /dev/null
+++ b/PepperDashEssentials/Bridges/DmpsAudioOutputControllerBridge.cs
@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Crestron.SimplSharp;
+using Crestron.SimplSharpPro.DeviceSupport;
+using Crestron.SimplSharpPro.DM;
+
+using PepperDash.Core;
+using PepperDash.Essentials.Core;
+using PepperDash.Essentials.DM;
+
+namespace PepperDash.Essentials.Bridges
+{
+    public static class DmpsAudioOutputControllerApiExtensions
+    {
+        public static void LinkToApi(this DmpsAudioOutputController dmAudioOutputController, BasicTriList trilis, uint joinStart, string joinMapKey)
+        {
+            var joinMap = JoinMapHelper.GetJoinMapForDevice(joinMapKey) as DmpsAudioOutputControllerJoinMap;
+
+            if (joinMap == null)
+                joinMap = new DmpsAudioOutputControllerJoinMap();
+
+            joinMap.OffsetJoinNumbers(joinStart);
+
+            Debug.Console(1, dmAudioOutputController, "Linking to Trilist '{0}'", trilis.ID.ToString("X"));
+
+
+        }
+
+        public class DmpsAudioOutputControllerJoinMap: JoinMapBase
+        {
+            // Digital
+            public uint MasterVolumeMute { get; set; }
+            public uint SourceVolumeMute { get; set; }
+            public uint Codec1VolumeMute { get; set; }
+            public uint Codec2VolumeMute { get; set; }
+
+
+            public DmpsAudioOutputControllerJoinMap()
+            {
+                MasterVolumeMute = 1; // 1-10
+                SourceVolumeMute = 11; // 11-20
+                Codec1VolumeMute = 21; // 21-30
+                Codec2VolumeMute = 31; // 31-40
+            }
+
+            public override void  OffsetJoinNumbers(uint joinStart)
+            {
+ 	            var joinOffset = joinStart -1;
+
+                MasterVolumeMute = MasterVolumeMute + joinOffset;
+                SourceVolumeMute = SourceVolumeMute + joinOffset;
+                Codec1VolumeMute = Codec1VolumeMute + joinOffset;
+                Codec2VolumeMute = Codec2VolumeMute + joinOffset;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/PepperDashEssentials/Bridges/DmpsRoutingControllerBridge.cs b/PepperDashEssentials/Bridges/DmpsRoutingControllerBridge.cs
index 1f61b1b6..9071f234 100644
--- a/PepperDashEssentials/Bridges/DmpsRoutingControllerBridge.cs
+++ b/PepperDashEssentials/Bridges/DmpsRoutingControllerBridge.cs
@@ -139,7 +139,7 @@ namespace PepperDash.Essentials.Bridges
 
 
             public DmpsRoutingControllerJoinMap()
-            {;
+            {
                 OutputVideo = 100; //101-299
                 OutputAudio = 300; //301-499
                 VideoSyncStatus = 100; //101-299
@@ -148,8 +148,8 @@ namespace PepperDash.Essentials.Bridges
                 OutputCurrentVideoInputNames = 2000; //2001-2199
                 OutputCurrentAudioInputNames = 2200; //2201-2399
                 InputCurrentResolution = 2400; // 2401-2599
-                InputEndpointOnline = 500;
-                OutputEndpointOnline = 700;
+                InputEndpointOnline = 500; //501-699
+                OutputEndpointOnline = 700; //701-899
                 //HdcpSupport = 1000; //1001-1199
                 //HdcpSupportCapability = 1200; //1201-1399
 
diff --git a/PepperDashEssentials/PepperDashEssentials.csproj b/PepperDashEssentials/PepperDashEssentials.csproj
index bdc25538..3327128a 100644
--- a/PepperDashEssentials/PepperDashEssentials.csproj
+++ b/PepperDashEssentials/PepperDashEssentials.csproj
@@ -121,6 +121,7 @@
     <Compile Include="Bridges\BridgeFactory.cs" />
     <Compile Include="Bridges\CameraControllerBridge.cs" />
     <Compile Include="Bridges\AirMediaControllerBridge.cs" />
+    <Compile Include="Bridges\DmpsAudioOutputControllerBridge.cs" />
     <Compile Include="Bridges\DmpsRoutingControllerBridge.cs" />
     <Compile Include="Bridges\DisplayControllerBridge.cs" />
     <Compile Include="Bridges\DigitalLoggerBridge.cs" />
diff --git a/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsAudioOutputController.cs b/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsAudioOutputController.cs
index a10c73b2..dfeac4ee 100644
--- a/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsAudioOutputController.cs	
+++ b/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsAudioOutputController.cs	
@@ -26,7 +26,6 @@ namespace PepperDash.Essentials.DM
         public DmpsAudioOutput SourceVolumeLevel { get; private set; }
         public DmpsAudioOutput Codec1VolumeLevel { get; private set; }
         public DmpsAudioOutput Codec2VolumeLevel { get; private set; }
-        public Dictionary<int, DmpsAudioOutput> MicVolumeLevels { get; private set; }
 
         public DmpsAudioOutputController(string key, string name, Card.Dmps3OutputBase card)
             : base(key, name)
@@ -51,6 +50,7 @@ namespace PepperDash.Essentials.DM
             {
                 Codec1VolumeLevel = new DmpsAudioOutput(card, eDmpsLevelType.Codec1);
             }
+
         }
 
         void BaseDevice_DMOutputChange(Switch device, DMOutputEventArgs args)
@@ -111,6 +111,8 @@ namespace PepperDash.Essentials.DM
         public BoolFeedback MuteFeedback { get; private set; }
         public IntFeedback VolumeLevelFeedback { get; private set; }
 
+        public Dictionary<int, DmpsAudioOutput> MicVolumeLevels { get; private set; }
+
         Action MuteOnAction;
         Action MuteOffAction;
         Action<bool> VolumeUpAction;
@@ -120,6 +122,8 @@ namespace PepperDash.Essentials.DM
         {
             Output = output;
 
+            Type = type;
+
             switch (type)
             {
                 case eDmpsLevelType.Master:
@@ -224,6 +228,13 @@ namespace PepperDash.Essentials.DM
                         break;
                     }
             }
+
+            var numberOfMics = Global.ControlSystem.NumberOfMicrophones;
+
+            for (int i = 1; i <= numberOfMics; i++)
+            {
+                // Construct each mic level here
+            }
         }
 
         #region IBasicVolumeWithFeedback Members
@@ -274,6 +285,7 @@ namespace PepperDash.Essentials.DM
         Source,
         MicsMaster,
         Codec1,
-        Codec2
+        Codec2,
+        Mic
     }
 }
\ No newline at end of file