diff --git a/packages/CarSystemUI/res/layout/car_volume_item.xml b/packages/CarSystemUI/res/layout/car_volume_item.xml
index 2275ca6329e2f..0b429040fc860 100644
--- a/packages/CarSystemUI/res/layout/car_volume_item.xml
+++ b/packages/CarSystemUI/res/layout/car_volume_item.xml
@@ -19,16 +19,18 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:background="@color/car_volume_dialog_background_color"
+    android:paddingStart="@dimen/car_volume_item_padding_start"
+    android:paddingEnd="@dimen/car_volume_item_padding_end"
     android:minHeight="@dimen/car_volume_item_height">
 
     <!-- Primary Action. -->
     <ImageView
         android:id="@+id/primary_icon"
-        android:layout_width="@dimen/car_primary_icon_size"
+        android:layout_width="@dimen/car_volume_item_icon_size"
         android:layout_centerVertical="true"
-        android:layout_marginStart="@dimen/car_volume_item_margin_horizontal"
         android:layout_alignParentStart="true"
-        android:layout_height="@dimen/car_primary_icon_size"/>
+        android:layout_height="@dimen/car_volume_item_icon_size"/>
 
     <!-- Note: the horizontal padding and offset are set to 0 so that the track and thumb
              aligns with the proper keylines. -->
@@ -61,11 +63,10 @@
         android:background="@color/car_volume_item_divider_color"/>
     <ImageView
         android:id="@+id/supplemental_icon"
-        android:layout_width="@dimen/car_primary_icon_size"
-        android:layout_height="@dimen/car_primary_icon_size"
+        android:layout_width="@dimen/car_volume_item_icon_size"
+        android:layout_height="@dimen/car_volume_item_icon_size"
         android:background="?android:attr/selectableItemBackground"
         android:layout_centerVertical="true"
         android:layout_alignParentEnd="true"
-        android:layout_marginEnd="@dimen/car_volume_item_margin_horizontal"
         android:scaleType="fitCenter"/>
 </RelativeLayout>
diff --git a/packages/CarSystemUI/res/values/colors.xml b/packages/CarSystemUI/res/values/colors.xml
index 72914f7b18163..b818962835708 100644
--- a/packages/CarSystemUI/res/values/colors.xml
+++ b/packages/CarSystemUI/res/values/colors.xml
@@ -37,6 +37,9 @@
     <!-- The background color of the notification shade -->
     <color name="notification_shade_background_color">#DD000000</color>
 
+    <!-- The background color of the car volume dialog -->
+    <color name="car_volume_dialog_background_color">@color/system_bar_background_opaque</color>
+
     <!-- The color of the dividing line between grouped notifications. -->
     <color name="notification_divider_color">@*android:color/notification_action_list</color>
 
diff --git a/packages/CarSystemUI/res/values/dimens.xml b/packages/CarSystemUI/res/values/dimens.xml
index 0358357b9c1a7..70174848df242 100644
--- a/packages/CarSystemUI/res/values/dimens.xml
+++ b/packages/CarSystemUI/res/values/dimens.xml
@@ -78,8 +78,10 @@
     <dimen name="ongoing_appops_chip_bg_corner_radius">12dp</dimen>
 
     <!-- Car volume dimens. -->
+    <dimen name="car_volume_item_icon_size">@dimen/car_primary_icon_size</dimen>
     <dimen name="car_volume_item_height">@*android:dimen/car_single_line_list_item_height</dimen>
-    <dimen name="car_volume_item_margin_horizontal">@*android:dimen/car_keyline_1</dimen>
+    <dimen name="car_volume_item_padding_start">@*android:dimen/car_keyline_1</dimen>
+    <dimen name="car_volume_item_padding_end">@*android:dimen/car_keyline_1</dimen>
     <dimen name="car_volume_item_seekbar_margin_vertical">@*android:dimen/car_padding_1</dimen>
     <dimen name="car_volume_item_seekbar_margin_start">@*android:dimen/car_keyline_3</dimen>
     <dimen name="car_volume_item_seekbar_margin_end">@*android:dimen/car_padding_4</dimen>
diff --git a/packages/CarSystemUI/src/com/android/systemui/volume/CarVolumeDialogImpl.java b/packages/CarSystemUI/src/com/android/systemui/volume/CarVolumeDialogImpl.java
index 94962f7c1989e..d0a63f058291f 100644
--- a/packages/CarSystemUI/src/com/android/systemui/volume/CarVolumeDialogImpl.java
+++ b/packages/CarSystemUI/src/com/android/systemui/volume/CarVolumeDialogImpl.java
@@ -32,7 +32,9 @@ import android.content.DialogInterface;
 import android.content.ServiceConnection;
 import android.content.res.TypedArray;
 import android.content.res.XmlResourceParser;
+import android.graphics.Color;
 import android.graphics.PixelFormat;
+import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.media.AudioManager;
 import android.os.Debug;
@@ -245,6 +247,7 @@ public class CarVolumeDialogImpl implements VolumeDialog {
         mExpanded = false;
         mWindow = mDialog.getWindow();
         mWindow.requestFeature(Window.FEATURE_NO_TITLE);
+        mWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
         mWindow.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND
                 | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
         mWindow.addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE