diff --git a/ios/DisplayManager.mm b/ios/DisplayManager.mm
index 3e19194bef..36c6115e75 100644
--- a/ios/DisplayManager.mm
+++ b/ios/DisplayManager.mm
@@ -64,6 +64,9 @@
 	[self setOriginalFrame: [gameWindow frame]];
 	[self setOriginalBounds:[gameWindow bounds]];
 	[self setOriginalTransform:[gameWindow transform]];
+
+	// TODO: From iOS 13, should use UIScreenDidConnectNotification instead of the below.
+
 	// Display connected
 	[[NSNotificationCenter defaultCenter] addObserverForName:UIScreenDidConnectNotification object:nil queue:nil usingBlock:^(NSNotification * _Nonnull notification) {
 		UIScreen *screen = (UIScreen *) notification.object;
@@ -74,8 +77,7 @@
 			return;
 		}
 		// Ignore mute switch when connected to external display
-		NSError *error = nil;
-		[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&error];
+		iOSCoreAudioSetDisplayConnected(true);
 		[self updateScreen:screen];
 	}];
 	// Display disconnected
@@ -89,8 +91,7 @@
 			UIScreen *newScreen = [[self extDisplays] lastObject];
 			[self updateScreen:newScreen];
 		} else {
-			NSError *error = nil;
-			[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryAmbient error:&error];
+			iOSCoreAudioSetDisplayConnected(false);
 			[self updateScreen:[UIScreen mainScreen]];
 		}
 	}];
diff --git a/ios/iOSCoreAudio.h b/ios/iOSCoreAudio.h
index a3c70ccbfc..944e0e81dc 100644
--- a/ios/iOSCoreAudio.h
+++ b/ios/iOSCoreAudio.h
@@ -19,4 +19,9 @@
 // Originally written by jtraynham
 
 void iOSCoreAudioInit();
-void iOSCoreAudioShutdown();
\ No newline at end of file
+void iOSCoreAudioShutdown();
+
+// Ignore mute switch when connected to external display.
+// Also, obey other settings.
+void iOSCoreAudioUpdateSession();
+void iOSCoreAudioSetDisplayConnected(bool connected);
\ No newline at end of file
diff --git a/ios/iOSCoreAudio.mm b/ios/iOSCoreAudio.mm
index 8129cc9afc..3e1aa0cf29 100644
--- a/ios/iOSCoreAudio.mm
+++ b/ios/iOSCoreAudio.mm
@@ -28,6 +28,22 @@
 #define SAMPLE_RATE 44100
 
 static AudioComponentInstance audioInstance = nil;
+static bool g_displayConnected = false;
+
+void iOSCoreAudioUpdateSession() {
+	NSError *error = nil;
+	// Default mode
+	if (g_displayConnected) {
+		[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&error];
+	} else {
+		[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryAmbient error:&error];
+	}
+}
+
+void iOSCoreAudioSetDisplayConnected(bool connected) {
+	g_displayConnected = connected;
+	iOSCoreAudioUpdateSession();
+}
 
 int NativeMix(short *audio, int numSamples, int sampleRate);
 
@@ -75,7 +91,7 @@ void iOSCoreAudioInit()
 			NSLog(@"%@", error.localizedFailureReason);
 		}
 	}
-	
+
 	if (audioInstance) {
 		// Already running
 		return;