service/res/xml/car_audio_configuration.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2018 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.
-->

<!--
  Defines the audio configuration in a car, including
    - Audio zones
    - Display to audio zone mappings
    - Context to audio bus mappings
    - Volume groups
  in the car environment.
-->
<carAudioConfiguration
        xmlns:car="http://schemas.android.com/apk/res-auto"
        car:version="1">
    <zones>
        <zone car:name="primary zone" car:isPrimary="true">
            <volumeGroups>
                <group>
                    <device car:address="bus0_media_out">
                        <context car:context="music"/>
                    </device>
                    <device car:address="bus3_call_ring_out">
                        <context car:context="call_ring"/>
                    </device>
                    <device car:address="bus6_notification_out">
                        <context car:context="notification"/>
                    </device>
                    <device car:address="bus7_system_sound_out">
                        <context car:context="system_sound"/>
                    </device>
                </group>
                <group>
                    <device car:address="bus1_navigation_out">
                        <context car:context="navigation"/>
                    </device>
                    <device car:address="bus2_voice_command_out">
                        <context car:context="voice_command"/>
                    </device>
                </group>
                <group>
                    <device car:address="bus4_call_out">
                        <context car:context="call"/>
                    </device>
                </group>
                <group>
                    <device car:address="bus5_alarm_out">
                        <context car:context="alarm"/>
                    </device>
                </group>
            </volumeGroups>
            <displays>
                <display car:display="primary_display"/>
            </displays>
        </zone>
        <zone car:name="rear seat zone">
            <volumeGroups>
                <group>
                    <device car:address="bus100_rear_seat">
                        <context car:context="music"/>
                        <context car:context="navigation"/>
                        <context car:context="voice_command"/>
                        <context car:context="call_ring"/>
                        <context car:context="call"/>
                        <context car:context="alarm"/>
                        <context car:context="notification"/>
                        <context car:context="system_sound"/>
                    </device>
                </group>
            </volumeGroups>
            <displays>
                <display car:display="rear_seat_display"/>
            </displays>
        </zone>
    </zones>
</carAudioConfiguration>