1. Introduction
Thank you for choosing the Biorunn Android 12 Car Radio Stereo. This manual provides essential information for the installation, operation, and maintenance of your new car multimedia system. Please read it thoroughly before use to ensure proper functionality and safety.
This device features an Octa-Core processor, 4GB RAM, 64GB ROM, and a 9.5-inch 2K QLED touchscreen with a resolution of 2000x1200. It includes built-in wireless CarPlay and Android Auto, Bluetooth 5.1, DSP with 36-band EQ, DTS audio, voice control, and 4G LTE/WiFi connectivity.

Image 1.1: Front view of the Biorunn Android 12 Car Radio Stereo, displaying the main interface with navigation, music, and app icons.
2. Package Contents
Before installation, please verify that all components are present in the package:
- 1 x Host Device (Car Radio Stereo)
- 1 x RCA Cable Set
- 2 x USB Cables
- 1 x Reversing Camera Input Cable
- 1 x Fakra GPS Antenna
- 1 x Fakra 4G Antenna
- 1 x External Microphone (MIC)
- 1 x Instruction Manual (this document)
- Accessories (mounting brackets, screws)

Image 2.1: Visual representation of the host device, RCA cables, reversing camera cable, GPS antenna, 4G antenna, USB cables, and other accessories included in the package.
3. Setup and Installation
Professional installation is recommended. Ensure the vehicle's power is disconnected before beginning installation.
3.1 Pre-Installation Check
- Verify dashboard space: The front panel size is 228(W) x 130(H)mm. Ensure your dashboard has sufficient space for the 9.5-inch screen.
- Identify vehicle wiring: Consult your vehicle's wiring diagram to correctly identify power, ground, speaker, and accessory wires.
3.2 Wiring Diagram
Refer to the detailed wiring diagram for all connections. Incorrect wiring can damage the unit or vehicle electronics.

Image 3.1: Comprehensive wiring diagram showing connections for power, speakers, antennas (GPS, 4G), USB, microphone, reversing camera, and other auxiliary inputs/outputs.
3.3 Component Connections
- Power and Ground: Connect the main power harness to the vehicle's power supply, ensuring correct polarity.
- Speaker Outputs: Connect the speaker wires to your vehicle's speakers. Observe correct positive and negative terminals.
- GPS Antenna: Connect the Fakra GPS antenna to the designated port on the rear of the unit. Position the antenna in a location with a clear view of the sky for optimal signal reception.
- 4G Antenna: Connect the Fakra 4G antenna to its port. This is essential for 4G LTE connectivity.
- USB Cables: Connect the provided USB cables for external storage or device charging.
- External Microphone: Plug in the external microphone for improved voice command and call quality.
- Reversing Camera: Connect the reversing camera input cable if installing a rearview camera.
- RCA Cables: Use the RCA cable set for connecting external amplifiers, subwoofers, or video outputs.
- CANbus Box (if applicable): If your vehicle requires a CANbus decoder, connect it as per the vehicle-specific instructions.

Image 3.2: Screen displaying the CANbus box type selection menu, allowing configuration for various car brands and models.
3.4 Cooling Fan
The unit is equipped with a cooling fan to maintain optimal operating temperatures and prevent overheating, ensuring stable performance.

Image 3.3: Illustration of the integrated cooling fan on the rear of the unit, demonstrating its role in reducing CPU and GPU temperatures for enhanced stability.
4. Operating Instructions
4.1 User Interface Overview
The main interface provides quick access to essential functions. Swipe down from the top of the screen to access shortcut functions like Wi-Fi, Eye Comfort, Data, Airplane Mode, Clean Memory, and Reboot.

Image 4.1: Labeled diagram of the car stereo's user interface, highlighting system settings, radio, Bluetooth, navigation, music playback, and customizable application shortcuts.
4.2 Wireless CarPlay and Android Auto
The unit supports both wireless CarPlay and wired Android Auto, allowing seamless integration with your smartphone for navigation, music, calls, and messages.
- Wireless CarPlay: Connect your iPhone wirelessly via Bluetooth and Wi-Fi.
- Wired Android Auto: Connect your Android phone via a USB cable.

Image 4.2: Illustration demonstrating the connection methods for Wireless CarPlay (iPhone) and Wired Android Auto (Android phone) to the car stereo.
4.3 Voice Control
Utilize the intelligent voice control feature for hands-free operation, enhancing driving safety. The system offers sensitive and extensive voice recognition capabilities.

Image 4.3: Graphic depicting the voice control interface with a microphone icon and various language commands for playing music and navigating to the homepage.
4.4 FM/AM RDS Radio
The built-in radio supports automatic and manual station searching. You can easily drag and drop station icons to customize your channel list.

Image 4.4: Screenshot of the FM/AM radio interface, showing frequency display, station presets, and RDS information.
4.5 Bluetooth 5.1 Functionality
The integrated Bluetooth 5.1 module with microphone supports hands-free calling, automatic phonebook loading, and Bluetooth music streaming.
- Hands-free Calling: Make and receive calls directly from the stereo.
- Phonebook Sync: Automatically loads your phone's contacts.
- Bluetooth Music: Stream audio from your connected device.

Image 4.5: Display of the Bluetooth interface, showing phonebook, call record, and music playback options, along with a connected smartphone.
4.6 DSP and DTS Audio Processing
Experience enhanced audio quality with the Digital Sound Processor (DSP) featuring a 36-band equalizer and support for DTS 4.1 / 5.1 channel surround systems.

Image 4.6: Screenshots of the DSP settings, including a 36-band equalizer, sound field adjustments, surround sound enhancement, and bass/sound filter controls.
4.7 4G LTE and WiFi Connectivity
Connect to 4G networks for online streaming, music, games, and movies. Built-in WiFi allows connection to local hotspots.

Image 4.7: Graphic illustrating 4G connectivity with a SIM card slot, enabling high-speed internet access for various online activities.
4.8 Split Screen Functionality
The split-screen feature allows two applications to be displayed simultaneously, enhancing multitasking and convenience.

Image 4.8: Display of the split-screen mode, showing the radio interface on one side and a navigation map on the other.
4.9 Customizable Interface
Personalize your user experience by customizing the main interface icons and the position of the shortcut menu bar.

Image 4.9: Screenshot showing the customization options for the main interface, allowing users to select and arrange application icons.
5. Maintenance
To ensure the longevity and optimal performance of your Biorunn Car Radio Stereo, follow these maintenance guidelines:
- Screen Cleaning: Use a soft, lint-free cloth specifically designed for electronics screens. Gently wipe the touchscreen to remove dust and fingerprints. Avoid abrasive cleaners or harsh chemicals.
- General Cleaning: Use a soft, dry cloth to clean the unit's exterior. Do not use excessive moisture.
- Software Updates: Periodically check for available software updates to ensure you have the latest features and performance enhancements. Follow the on-screen instructions for any updates.
- Avoid Extreme Temperatures: Do not expose the unit to extreme heat or cold, as this can affect its electronic components and screen.
- Protect from Moisture: Keep the unit dry and away from liquids.
6. Troubleshooting
If you encounter issues with your Biorunn Car Radio Stereo, refer to the following common troubleshooting steps:
- No Power: Check all power connections, including the main power harness and ground wire. Ensure the vehicle's fuse for the stereo is intact.
- No Sound: Verify speaker connections. Check audio settings (volume, mute, equalizer). Ensure external amplifiers (if used) are powered on.
- Touchscreen Unresponsive: Try restarting the unit. If the issue persists, a factory reset might be necessary (note: this will erase all user data).
- GPS Signal Loss: Ensure the GPS antenna is securely connected and placed in a location with a clear view of the sky.
- Bluetooth Connection Issues: Ensure Bluetooth is enabled on both the stereo and your phone. Try unpairing and re-pairing the devices.
- CarPlay/Android Auto Not Connecting: For wireless CarPlay, ensure Wi-Fi and Bluetooth are on. For wired Android Auto, try a different USB cable. Check phone settings for permissions.
- System Slow/Lagging: Close unnecessary background applications. Clear system cache if available in settings. A system reboot or factory reset may resolve persistent slowness.
For more complex issues, please contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Operating System | Android 12 |
| Processor | Octa Core |
| RAM | 4GB |
| ROM | 64GB |
| Screen Size | 9.5 Inches |
| Display Type | 2K QLED Touchscreen |
| Resolution | 2000 x 1200 |
| Connectivity | Bluetooth 5.1, Wi-Fi, 4G LTE |
| Navigation | Built-in GPS, Supports Worldwide Maps |
| Smartphone Integration | Wireless CarPlay, Wired Android Auto |
| Audio Features | DSP (36 Band EQ), DTS 4.1 / 5.1 Channel Surround |
| Radio Tuner | FM/AM RDS |
| Special Features | Voice Control, Split Screen, Cooling Fan, Brightness Adjustment, Steering Wheel Control Support |
| Product Dimensions | 8.98 x 8.98 x 5.12 inches |
| Item Weight | 3.67 pounds |
8. Warranty and Support
Biorunn is committed to providing quality products and customer satisfaction. For any technical assistance or inquiries, please contact our support team.
- Technical Support: If you have any questions or encounter problems, please reach out to the seller, RongNan International, directly. They aim to reply within 24 hours.
- Warranty: Specific warranty details may vary. Please refer to your purchase documentation or contact the seller for information regarding product warranty.

Image 8.1: Screenshot illustrating how to access seller support for technical assistance, emphasizing direct communication for problem resolution.





