diff --git a/data/etc/Android.bp b/data/etc/Android.bp
index 43f65e3..6bde0ed 100644
--- a/data/etc/Android.bp
+++ b/data/etc/Android.bp
@@ -128,7 +128,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.systemui",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.systemui.xml",
     filename_from_src: true,
diff --git a/data/etc/CleanSpec.mk b/data/etc/CleanSpec.mk
index b76eb15..783a7ed 100644
--- a/data/etc/CleanSpec.mk
+++ b/data/etc/CleanSpec.mk
@@ -53,6 +53,8 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.settings.xml)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.launcher3.xml)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.launcher3.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.systemui.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.systemui.xml)
 # ******************************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER
 # ******************************************************************
diff --git a/packages/CarSystemUI/Android.bp b/packages/CarSystemUI/Android.bp
index b2451c9..56f5a96 100644
--- a/packages/CarSystemUI/Android.bp
+++ b/packages/CarSystemUI/Android.bp
@@ -140,7 +140,7 @@
     ],
 
     platform_apis: true,
-    product_specific: true,
+    system_ext_specific: true,
     certificate: "platform",
     privileged: true,
 
diff --git a/packages/CarSystemUI/CleanSpec.mk b/packages/CarSystemUI/CleanSpec.mk
new file mode 100644
index 0000000..ceac67c
--- /dev/null
+++ b/packages/CarSystemUI/CleanSpec.mk
@@ -0,0 +1,50 @@
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list.  These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list.  E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# *****************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THE BANNER
+# *****************************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/priv-app/CarSystemUI)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/priv-app/CarSystemUI)
+# ******************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER
+# ******************************************************************
diff --git a/packages/SystemUI/Android.bp b/packages/SystemUI/Android.bp
index 0c582c4..7c8c8b4 100644
--- a/packages/SystemUI/Android.bp
+++ b/packages/SystemUI/Android.bp
@@ -152,7 +152,7 @@
     resource_dirs: [],
 
     platform_apis: true,
-    product_specific: true,
+    system_ext_specific: true,
     certificate: "platform",
     privileged: true,
 
diff --git a/packages/SystemUI/CleanSpec.mk b/packages/SystemUI/CleanSpec.mk
new file mode 100644
index 0000000..2a2e4e4
--- /dev/null
+++ b/packages/SystemUI/CleanSpec.mk
@@ -0,0 +1,50 @@
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list.  These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list.  E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# *****************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THE BANNER
+# *****************************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/priv-app/SystemUI)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/priv-app/SystemUI)
+# ******************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER
+# ******************************************************************