diff --git a/automotive/remoteaccess/hal/default/Android.bp b/automotive/remoteaccess/hal/default/Android.bp
index be6a425..cf173d5 100644
--- a/automotive/remoteaccess/hal/default/Android.bp
+++ b/automotive/remoteaccess/hal/default/Android.bp
@@ -52,11 +52,6 @@
     defaults: ["remote-access-hal-defaults"],
     vintf_fragments: ["remoteaccess-default-service.xml"],
     init_rc: ["remoteaccess-default-service.rc"],
-    cflags: [
-        // Uncomment this if running on emulator and connecting to a local grpc server
-        // running on host 127.0.0.1:50051 (TestWakeupClientServerHost)
-        // "-DGRPC_SERVICE_ADDRESS=\"10.0.2.2:50051\"",
-    ],
 }
 
 cc_binary {
@@ -64,10 +59,6 @@
     defaults: ["remote-access-hal-defaults"],
     vintf_fragments: ["remoteaccess-default-service.xml"],
     init_rc: ["remoteaccess-tcu-test-service.rc"],
-    cflags: [
-        "-DGRPC_SERVICE_ADDRESS=\"10.10.10.1:50051\"",
-        "-DGRPC_SERVICE_IFNAME=\"eth1\"",
-    ],
 }
 
 cc_library {
diff --git a/automotive/remoteaccess/hal/default/src/RemoteAccessImpl.cpp b/automotive/remoteaccess/hal/default/src/RemoteAccessImpl.cpp
index 28c5cd5..a50f3bb 100644
--- a/automotive/remoteaccess/hal/default/src/RemoteAccessImpl.cpp
+++ b/automotive/remoteaccess/hal/default/src/RemoteAccessImpl.cpp
@@ -27,37 +27,66 @@
 #include <libnetdevice/libnetdevice.h>
 #include <stdlib.h>
 
+namespace {
+
+constexpr char GRPC_SERVICE_CONFIG_FILE[] = "/vendor/etc/automotive/powercontroller/serverconfig";
 constexpr char SERVICE_NAME[] = "android.hardware.automotive.remoteaccess.IRemoteAccess/default";
 
+void maybeGetGrpcServiceInfo(std::string* address, std::string* ifname) {
+    std::ifstream ifs(GRPC_SERVICE_CONFIG_FILE);
+    if (!ifs) {
+        LOG(INFO) << "Cannot open grpc service config file at: " << GRPC_SERVICE_CONFIG_FILE
+                  << ", assume no service is available";
+        return;
+    }
+    int count = 0;
+    while (ifs.good()) {
+        std::string line;
+        ifs >> line;
+        // First line is address, second line, if present is ifname.
+        if (count == 0) {
+            *address = line;
+        } else {
+            *ifname = line;
+            break;
+        }
+        count++;
+    }
+    ifs.close();
+}
+
+}  // namespace
+
 int main(int /* argc */, char* /* argv */[]) {
-    android::hardware::automotive::remoteaccess::WakeupClient::StubInterface* grpcStub = nullptr;
+    std::string grpcServiceAddress = "";
+    std::string grpcServiceIfname = "";
+    maybeGetGrpcServiceInfo(&grpcServiceAddress, &grpcServiceIfname);
 
-#ifdef GRPC_SERVICE_ADDRESS
-    LOG(INFO) << "Registering RemoteAccessService as service, server: " << GRPC_SERVICE_ADDRESS
-              << "...";
-    grpc::ChannelArguments grpcargs = {};
+    std::unique_ptr<android::hardware::automotive::remoteaccess::WakeupClient::Stub> grpcStub;
 
-#ifdef GRPC_SERVICE_IFNAME
-    grpcargs.SetSocketMutator(
-            android::hardware::automotive::remoteaccess::MakeBindToDeviceSocketMutator(
-                    GRPC_SERVICE_IFNAME));
-    LOG(DEBUG) << "GRPC_SERVICE_IFNAME specified as: " << GRPC_SERVICE_IFNAME;
-    LOG(INFO) << "Waiting for interface: " << GRPC_SERVICE_IFNAME;
-    android::netdevice::waitFor({GRPC_SERVICE_IFNAME},
-                                android::netdevice::WaitCondition::PRESENT_AND_UP);
-    LOG(INFO) << "Waiting for interface: " << GRPC_SERVICE_IFNAME << " done";
-#endif  // #ifdef GRPC_SERVICE_IFNAME
-    auto channel = grpc::CreateChannel(GRPC_SERVICE_ADDRESS, grpc::InsecureChannelCredentials());
-    auto clientStub = android::hardware::automotive::remoteaccess::WakeupClient::NewStub(channel);
+    if (grpcServiceAddress != "") {
+        LOG(INFO) << "Registering RemoteAccessService as service, server: " << grpcServiceAddress
+                  << "...";
+        grpc::ChannelArguments grpcargs = {};
 
-    grpcStub = clientStub.get();
-
-#else
-    LOG(INFO) << "GRPC_SERVICE_ADDRESS is not defined, work in fake mode";
-#endif  // #ifdef GRPC_SERVICE_ADDRESS
+        if (grpcServiceIfname != "") {
+            grpcargs.SetSocketMutator(
+                    android::hardware::automotive::remoteaccess::MakeBindToDeviceSocketMutator(
+                            grpcServiceIfname));
+            LOG(DEBUG) << "grpcServiceIfname specified as: " << grpcServiceIfname;
+            LOG(INFO) << "Waiting for interface: " << grpcServiceIfname;
+            android::netdevice::waitFor({grpcServiceIfname},
+                                        android::netdevice::WaitCondition::PRESENT_AND_UP);
+            LOG(INFO) << "Waiting for interface: " << grpcServiceIfname << " done";
+        }
+        auto channel = grpc::CreateChannel(grpcServiceAddress, grpc::InsecureChannelCredentials());
+        grpcStub = android::hardware::automotive::remoteaccess::WakeupClient::NewStub(channel);
+    } else {
+        LOG(INFO) << "grpcServiceAddress is not defined, work in fake mode";
+    }
 
     auto service = ndk::SharedRefBase::make<
-            android::hardware::automotive::remoteaccess::RemoteAccessService>(grpcStub);
+            android::hardware::automotive::remoteaccess::RemoteAccessService>(grpcStub.get());
 
     binder_exception_t err = AServiceManager_addService(service->asBinder().get(), SERVICE_NAME);
     if (err != EX_NONE) {
diff --git a/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp
index 80e4087..5fc07c9 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp
@@ -29,9 +29,6 @@
     export_include_dirs: ["include"],
     cflags: [
         "-DENABLE_VEHICLE_HAL_TEST_PROPERTIES",
-        // Uncomment this if running on emulator and connecting to a local grpc server
-        // running on host 127.0.0.1:50051 (TestWakeupClientServerHost)
-        // "-DPOWER_GRPC_SERVICE_ADDRESS=\"10.0.2.2:50051\"",
     ],
     defaults: [
         "VehicleHalDefaults",
diff --git a/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h b/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h
index 8d6c883..644d1cd 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h
+++ b/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h
@@ -189,6 +189,10 @@
     // Only used during initialization.
     JsonConfigLoader mLoader;
 
+    // Only used during initialization. If not empty, points to an external grpc server that
+    // provides power controlling related properties.
+    std::string mPowerControllerServiceAddress = "";
+
     void init();
     // Stores the initial value to property store.
     void storePropInitialValue(const ConfigDeclaration& config);
diff --git a/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp b/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp
index c4e7086..072aafc 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp
+++ b/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp
@@ -114,6 +114,9 @@
 // The directory for property configuration file that overrides the default configuration file.
 // For config file format, see impl/default_config/config/README.md.
 constexpr char OVERRIDE_CONFIG_DIR[] = "/vendor/etc/automotive/vhaloverride/";
+// The optional config file for power controller grpc service that provides vehicleInUse and
+// ApPowerBootupReason property.
+constexpr char GRPC_SERVICE_CONFIG_FILE[] = "/vendor/etc/automotive/powercontroller/serverconfig";
 // If OVERRIDE_PROPERTY is set, we will use the configuration files from OVERRIDE_CONFIG_DIR to
 // overwrite the default configs.
 constexpr char OVERRIDE_PROPERTY[] = "persist.vendor.vhal_init_value_override";
@@ -267,6 +270,17 @@
 const std::unordered_set<int32_t> mPowerPropIds = {toInt(VehicleProperty::VEHICLE_IN_USE),
                                                    toInt(VehicleProperty::AP_POWER_BOOTUP_REASON)};
 
+void maybeGetGrpcServiceInfo(std::string* address) {
+    std::ifstream ifs(GRPC_SERVICE_CONFIG_FILE);
+    if (!ifs) {
+        ALOGI("Cannot open grpc service config file at: %s, assume no service is available",
+              GRPC_SERVICE_CONFIG_FILE);
+        return;
+    }
+    ifs >> *address;
+    ifs.close();
+}
+
 }  // namespace
 
 void FakeVehicleHardware::storePropInitialValue(const ConfigDeclaration& config) {
@@ -357,6 +371,8 @@
 }
 
 void FakeVehicleHardware::init() {
+    maybeGetGrpcServiceInfo(&mPowerControllerServiceAddress);
+
     for (auto& [_, configDeclaration] : loadConfigDeclarations()) {
         VehiclePropConfig cfg = configDeclaration.config;
         VehiclePropertyStore::TokenFunction tokenFunction = nullptr;
@@ -774,12 +790,12 @@
     int32_t propId = value.prop;
     ValueResultType result;
 
-#ifdef POWER_GRPC_SERVICE_ADDRESS
-    if (mPowerPropIds.find(propId) != mPowerPropIds.end()) {
-        *isSpecialValue = true;
-        return getPowerPropFromExternalService(propId);
+    if (mPowerControllerServiceAddress != "") {
+        if (mPowerPropIds.find(propId) != mPowerPropIds.end()) {
+            *isSpecialValue = true;
+            return getPowerPropFromExternalService(propId);
+        }
     }
-#endif
 
     if (propId >= STARTING_VENDOR_CODE_PROPERTIES_FOR_TEST &&
         propId < ENDING_VENDOR_CODE_PROPERTIES_FOR_TEST) {
@@ -863,10 +879,9 @@
 }
 
 FakeVehicleHardware::ValueResultType FakeVehicleHardware::getPowerPropFromExternalService(
-        [[maybe_unused]] int32_t propId) const {
-#ifdef POWER_GRPC_SERVICE_ADDRESS
+        int32_t propId) const {
     auto channel =
-            grpc::CreateChannel(POWER_GRPC_SERVICE_ADDRESS, grpc::InsecureChannelCredentials());
+            grpc::CreateChannel(mPowerControllerServiceAddress, grpc::InsecureChannelCredentials());
     auto clientStub = PowerController::NewStub(channel);
     switch (propId) {
         case toInt(VehicleProperty::VEHICLE_IN_USE):
@@ -877,10 +892,6 @@
             return StatusError(StatusCode::INTERNAL_ERROR)
                    << "Unsupported power property ID: " << propId;
     }
-#else
-    // Must not reach here.
-    return StatusError(StatusCode::INTERNAL_ERROR);
-#endif
 }
 
 FakeVehicleHardware::ValueResultType FakeVehicleHardware::getVehicleInUse(