1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Eonon GMA12S Android 13 Car Stereo. Please read this manual thoroughly before using the product to ensure proper functionality and safety. The Eonon GMA12S is an 8-inch QLED touchscreen car stereo receiver designed for specific Chevrolet, GMC, and Buick models, featuring Android 13, wireless CarPlay, Android Auto, 4G LTE, Bluetooth, and Wi-Fi connectivity.
2. Applicable Models
The GMA12S head unit is compatible with the following vehicle models:
- Chevrolet: Silverado (2007-2013), Avalanche (2007-2013), Tahoe (2007-2014), Impala (2006-2013), Traverse (2008-2012), Suburban (2007-2012), Express Van (2008-2019)
- GMC: Sierra (2007-2013), Yukon (2007-2014), Acadia (2007-2012), Savana (2008-2019)
- Buick: Enclave (2008-2012)
Please ensure your vehicle's dashboard and radio plug match the compatible configurations shown in the image below. If your car radio plug is similar to the 'Not Fit' example, it is not suitable for installation.
Figure 2.1: Compatible and Incompatible Dashboards for Eonon GMA12S Installation.
3. Key Features
The Eonon GMA12S car stereo offers a range of advanced features for an enhanced in-car experience:
- Operating System: Android 13
- Processor: Octa-core Qualcomm Snapdragon 665 (11nm process, Kryo 260 CPU, Adreno 610 GPU)
- Memory & Storage: 6GB RAM & 64GB ROM
- Display: 8-inch QLED capacitive touchscreen with 1280x720 HD resolution and 3 brightness modes (Light, Dark, Auto)
- Connectivity: Wireless CarPlay & Android Auto, MirrorLink, 2.4G/5G Wi-Fi, 4G LTE (Micro-SIM card support), Bluetooth, USB
- Audio: Built-in Hexagon 686 DSP, ST TDA7851 4*48W output power amplifier, 15-band graphic equalizer, 6 present EQ modes
- Integration: Supports most original vehicle functions via CANBUS (door information, OnStar, Bose system - except voice buttons), Steering Wheel Controls
- Video: HDMI HD video output, split-screen function, supports 1080P HD Rear/Front camera input
Figure 3.1: Eonon GMA12S Core Specifications and Features.
Figure 3.2: Integration with OEM Vehicle Features.
4. What's in the Box
The Eonon GMA12S package includes the following components:
- 1x Eonon GMA12S Android Car Radio
- 1x User Manual
- 1x Power Harness
- 1x Radio Antenna Adapter
- 1x GPS Antenna
- 1x CANBUS Decoder
- 2x Radio Removal Keys
- 1x Wireless Remote Control
- 1x USB Cable
- 1x Screw Package
Figure 4.1: Package Contents of Eonon GMA12S.
5. Setup and Installation
Follow these steps for proper installation of your Eonon GMA12S car stereo. Professional installation is recommended.
5.1 General Installation
- Remove the Old Unit: Carefully remove the trim panel around your existing car stereo using a panel trim remover tool. Unscrew the mounting bolts and disconnect all wiring harnesses from the old unit.
- Connect Wiring Harnesses: Connect the provided Eonon wiring harnesses to your vehicle's factory harnesses. Ensure all connections are secure.
- Connect Peripherals: Connect the GPS antenna, 4G antennas (if applicable), external microphone, and USB cables to the corresponding ports on the new head unit.
- Test Functionality: Before fully securing the unit, briefly turn on your vehicle to test the basic functions of the new stereo, including power, audio, and touchscreen response.
- Install the New Unit: Carefully slide the Eonon GMA12S into the dashboard opening. Secure it with the mounting bolts and reattach the trim panel.
Video 5.1: How to Install Eonon Car Stereo for your car.
Video 5.2: Eonon car stereo compatible for Chevy Silverado, Plug and play!
5.2 Wiring Diagram
Refer to the detailed wiring diagram for connecting all components correctly.
Figure 5.1: Eonon GMA12S Wiring Diagram.
5.3 Connecting a Backup Camera
Connect the backup camera to the dedicated input on the head unit. Ensure the reverse trigger wire is connected to the vehicle's reverse light +12V and the camera's GND wire is connected to the ground of the reverse light.
Video 5.3: How to Connect a Backup Camera.
5.4 Connecting a Front Camera
Connect the front camera to the dedicated input on the head unit. Ensure the camera's power is connected to ACC (+12V) and the GND wire to ground.
Video 5.4: How to Connect a Front Camera.
5.5 Setting Up a SIM Card
To enable 4G LTE connectivity, insert a Micro-SIM card into the provided SIM card holder and connect it to the head unit. Some SIM cards may require APN settings configuration. Consult your SIM card service provider for details.
Video 5.5: How to Set Up a SIM Card.
5.6 Setting Up Steering Wheel Controls (SWC)
The GMA12S supports analog SWC signals. Connect the SWC wires from your vehicle to the corresponding inputs on the head unit's harness. Then, configure the buttons through the stereo's settings menu.
Video 5.6: How to Set Up Steering Wheel Controls.
5.7 Connecting a Subwoofer
Connect your subwoofer to the dedicated subwoofer output on the head unit. Ensure the AMP control wire is connected to the original car's AMP control wire.
Video 5.7: How to Connect a Subwoofer.
6. Operating Instructions
6.1 Wireless CarPlay & Android Auto
The GMA12S supports wireless CarPlay and Android Auto. Connect your smartphone via Bluetooth and Wi-Fi for automatic connection. This allows access to navigation, hands-free calling, and music playback directly on the stereo screen.
Figure 6.1: Wireless CarPlay and Android Auto Interface.
Video 6.1: How to Set Up Wireless CarPlay.
Video 6.2: How to Set Up Wireless Android Auto.
6.2 Screen Mirroring
MirrorLink allows you to display certain apps not supported by CarPlay or Android Auto via wired or wireless connection.
Video 6.3: How to Set Up Wireless Screen Mirroring for iPhone.
Video 6.4: How to Set Up Wireless Screen Mirroring for Android.
Video 6.5: How to Set Up Wired Screen Mirroring for iPhone.
Video 6.6: How to Set Up Wired Screen Mirroring for Android.
6.3 Split-screen Mode
The split-screen function allows you to view and use two applications simultaneously on the screen, such as navigation and music playback.
Figure 6.2: Split-screen Functionality.
Video 6.7: How to Enable & Exit Split-screen Mode.
6.4 Navigation
The stereo supports online and offline maps, offering full-view navigation mode. Utilize Google Maps, Apple Maps, Waze, or Sygic for worldwide navigation.
Figure 6.3: Navigation Options.
6.5 Radio and Media Playback
Enjoy AM/FM radio with RDS support, Bluetooth hands-free calling, music streaming, and USB playback. The unit features 3 USB interfaces for versatile media options.
Figure 6.4: Radio and Media Interface.
6.6 Display and Customization
The 8-inch QLED display offers vibrant colors and wide viewing angles. Customize your stereo's appearance with changeable wallpapers and button colors.
Figure 6.5: Display Customization Options.
6.7 Rear/Front Camera Input
The unit supports 1080P HD rear and front camera input for enhanced safety and monitoring. The rear camera automatically activates when reversing.
Figure 6.6: Rear and Front Camera Views.
7. Maintenance
7.1 Software Updates
The GMA12S supports Over-The-Air (OTA) software updates. Regularly check for updates to ensure optimal performance and access to the latest features. Updates can be performed directly from the device settings without manual downloading or connecting to a computer.
Figure 7.1: Online Software Updates.
7.2 Cleaning the Screen
Use a soft, lint-free cloth to gently wipe the QLED touchscreen. Avoid using harsh chemicals or abrasive materials that could damage the display.
8. Troubleshooting
If you encounter issues with your Eonon GMA12S, refer to the following common troubleshooting tips:
- No Power/Black Screen: Check all power connections. Ensure the vehicle's ignition is on. If the unit is unresponsive, locate the reset button (RST) on the unit and press it with a thin object (e.g., paperclip) for 10 seconds to restart.
- No Audio: Verify speaker connections. Check the volume settings on the stereo and your connected device. Ensure the amplifier is properly connected and powered.
- Bluetooth/Wi-Fi Connectivity Issues: Ensure Bluetooth and Wi-Fi are enabled on both the stereo and your smartphone. Try forgetting the device on both ends and re-pairing. Check Wi-Fi signal strength.
- CarPlay/Android Auto Not Connecting: Ensure your phone is compatible and the respective app is installed and updated. Try connecting via USB if wireless connection fails.
- Steering Wheel Controls Not Working: Verify the SWC wiring connections. Re-enter the 'WheelKey Study' settings in the stereo to re-map the buttons.
- Loud Buzzing Noise: This can sometimes be caused by interference. Check grounding connections. If using an external microphone, ensure the internal microphone is disconnected if recommended by support.
- Clock Not Holding Time: Ensure the unit has a data connection (Wi-Fi or SIM card) for automatic time updates. Check time zone settings.
For further assistance, please contact Eonon customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 7.91 x 4.72 x 1.26 inches |
| Item Weight | 2.64 pounds |
| Item Model Number | GMA12S |
| Screen Size | 8 Inches |
| Screen Type | QLED Capacitive Touchscreen |
| Resolution | 1280*720 HD |
| Operating System | Android 13 |
| Processor | Octa-core Qualcomm Snapdragon 665 |
| RAM | 6GB |
| ROM | 64GB |
| Connectivity Technology | Bluetooth, USB, Wi-Fi (2.4G/5G), 4G LTE |
| Audio Output Mode | Stereo |
| Special Features | Wireless CarPlay, Android Auto, DSP, HDMI Output |
10. Warranty and Support
For warranty information, technical support, or any product-related inquiries, please contact Eonon customer service. Refer to the contact details provided in your product packaging or on the official Eonon website.