1. Introduction
Thank you for choosing the SJOYBRING Double Din Car Stereo. This manual provides comprehensive instructions for the installation, operation, and maintenance of your new car stereo system. Please read this manual thoroughly before using the product to ensure proper functionality and to maximize your user experience. Keep this manual for future reference.
2. Safety Information
- Driving Safety: Always prioritize driving safety. Do not operate the system in a way that distracts you from the road. Adjust settings only when the vehicle is stationary and safe to do so.
- Installation: Incorrect installation can lead to malfunction or damage. If you are unsure about the installation process, seek professional assistance. Ensure all wiring is correctly connected and insulated to prevent short circuits.
- Power Supply: Connect the unit only to a 12V DC power supply with a negative ground.
- Temperature: Avoid exposing the unit to extreme temperatures, direct sunlight for prolonged periods, or excessive humidity.
- Cleaning: Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
3. Package Contents
Please verify that all items listed below are included in your package:
- SJOYBRING Double Din Car Stereo Unit
- Original Data Cable
- Remote Control
- Dash Cam and Cable (MicroSD card not included)
- Rear View Camera and Cable
- Mounting Frame
- Wiring Harness
- Mounting Brackets
- Screws
- User Manual (this document)

Figure 3.1: Included components and fitment guide.
4. Product Overview
The SJOYBRING Double Din Car Stereo features a 7-inch full HD capacitive touchscreen and intuitive physical buttons for easy operation. It integrates multiple functions including Apple CarPlay, Android Auto, Bluetooth, Mirror Link, AM/FM radio, and supports both dash cam and backup camera inputs.

Figure 4.1: Front view of the car stereo unit with integrated dash cam display.
4.1. Front Panel Controls and Ports
- 7-inch HD Capacitive Touchscreen: Main interface for all functions.
- Volume Knob: Rotary control for audio volume.
- Physical Buttons: Dedicated buttons for common functions like Home, Reset, AUX, etc.
- Built-in Microphone: For hands-free calling and voice commands.
- USB Port: For media playback, phone charging, and CarPlay/Android Auto connection.
- TF Card Slot: For media playback and dash cam recording storage.
4.2. Rear Panel Ports
The rear panel includes various input/output ports for power, speakers, cameras, and external audio/video devices. Refer to the wiring diagram in Section 5.2 for detailed connections.
5. Setup and Installation
5.1. Pre-Installation Checks
- Dashboard Opening Size: Before ordering and installation, measure your dashboard opening size. This unit supports common sizes: 173×98mm (6.81×3.85inch), 178×100mm (7×4inch), or 190×116mm (7.48×4.56inch). A suitable dash kit may be required for a perfect fit.
- Vehicle Compatibility: Some vehicles may require additional accessories (e.g., wiring harness adapter, antenna adapter) for installation.
- Disconnect Battery: Always disconnect the vehicle's negative battery terminal before starting any electrical work to prevent short circuits and damage.
5.2. Wiring Diagram
Follow the wiring diagram carefully for correct connections. Improper wiring can damage the unit or your vehicle's electrical system.

Figure 5.1: Detailed wiring diagram and product dimensions for installation.
- Power Connections:
- Yellow (B+): Connect to constant 12V power.
- Red (ACC): Connect to switched 12V power (ignition).
- Black (GND): Connect to vehicle chassis ground.
- Speaker Connections: Connect to vehicle speakers. Ensure correct polarity.
- White/White-Black: Front Left Speaker
- Gray/Gray-Black: Front Right Speaker
- Green/Green-Black: Rear Left Speaker
- Purple/Purple-Black: Rear Right Speaker
- Camera Connections:
- Rear Camera Input: Connect the video signal from the backup camera.
- Reverse Light Trigger (Brown wire): Connect to the vehicle's reverse light positive wire for automatic camera activation when shifting into reverse.
- Dash Cam Input: Connect the video signal from the dash cam.
- Steering Wheel Control (SWC): Connect SWC wires (Key1, Key2) to your vehicle's steering wheel control wires. Refer to your vehicle's wiring diagram for specific connections.
- Antenna: Connect your vehicle's radio antenna.
- External MIC: Connect the provided external microphone for improved call quality.
- Subwoofer/Amplifier Output: RCA outputs for connecting an external subwoofer or amplifier.
5.3. Mounting the Unit
Secure the unit into the dashboard opening using the provided mounting brackets and screws. Ensure it is firmly in place to prevent vibrations and movement.
6. Operating Instructions
6.1. Apple CarPlay and Android Auto
Connect your iPhone or Android smartphone via a USB cable to access CarPlay or Android Auto. This allows you to use phone functions like navigation, music, calls, and messages directly on the stereo's display.
- Connection: Plug your phone into the USB port of the stereo. The system will automatically detect and launch CarPlay or Android Auto.
- Voice Control: Utilize voice assistants (Siri for CarPlay, Google Assistant for Android Auto) for hands-free operation, enhancing driving safety.

Figure 6.1: Apple CarPlay and Android Auto interfaces displayed on the stereo.

Figure 6.2: Voice control integration with CarPlay and Android Auto.
6.2. Dash Cam and Backup Camera
The system supports both a front dash camera and a rear backup camera, providing enhanced visibility and recording capabilities.
- Dash Cam: Features a 150° ultra-wide-angle lens, HD 720P resolution, night vision, and loop recording. The camera can be rotated 360° for optimal viewing.
- Backup Camera: The AHD rear view camera offers a 170° ultra-wide viewing angle, is fully waterproof, and provides HD 1080P video quality. It automatically displays the rear view when the vehicle is put into reverse.

Figure 6.3: Key features of the integrated dash cam and backup camera.

Figure 6.4: Overview of dash cam and rear view camera coverage.


Figure 6.5: Dash cam rotation and backup camera wiring illustration.
6.3. Bluetooth 5.2
Connect your smartphone wirelessly via Bluetooth 5.2 for hands-free calling and audio streaming.
- Pairing: Enable Bluetooth on your phone and search for the stereo (e.g., "SJOYBRING"). Select it to pair.
- Hands-Free Calling: Make and receive calls directly through the stereo. The built-in and external microphones ensure clear sound.
- Audio Streaming: Play music from your phone wirelessly through the car speakers.

Figure 6.6: Bluetooth 5.2 connectivity and microphone features.

Figure 6.7: Bluetooth 5.2 usage in a vehicle.
6.4. Phone Mirror Link
Mirror Link allows you to display your smartphone's screen directly onto the car stereo's display, supporting both iOS and Android devices.
- Connection: Connect your phone via USB cable. Follow the on-screen prompts to activate Mirror Link.
- Functionality: View apps, videos, and navigation from your phone on the larger stereo screen.

Figure 6.8: Mirror Link displaying phone content on the stereo.

Figure 6.9: Mirror Link compatibility with Android and iOS phones.
6.5. HD Capacitive Touchscreen
The 1024 x 600 resolution HD capacitive touch screen provides smooth and accurate operation with support for 1920 x 1080P video playback.

Figure 6.10: Comparison of HD capacitive screen resolution.
6.6. Audio Settings (16-Band EQ)
Customize your audio experience with the built-in HIFI audio chip and 16-band equalizer settings. Adjust frequencies to match your preferences and vehicle acoustics.
- EQ Presets: Choose from various preset modes like Pop, Classic, Rock, Jazz, or create custom settings.
- Fader/Balance: Adjust audio distribution between front/rear and left/right speakers.

Figure 6.11: Digital Sound Processor (DSP) and Equalizer interface.

Figure 6.12: 16-Band Equalizer adjustment screen.
6.7. AM/FM Radio
Tune into your favorite AM and FM radio stations.
- Frequency Range: AM (530-1710KHz), FM (87.5-107.9 MHz).
- Station Presets: Save your preferred stations for quick access.

Figure 6.13: FM/AM Radio tuning interface.
6.8. Steering Wheel Control (SWC)
Program your vehicle's steering wheel controls to operate the stereo, allowing for convenient and safe control of functions like volume, track skipping, and mode switching.
- Setup: Access the SWC settings in the stereo menu. Follow the instructions to map your steering wheel buttons to the desired functions.

Figure 6.14: Steering Wheel Control programming interface.
6.9. 7 Color LED Key Light
Customize the color of the physical key backlighting to match your vehicle's interior or your personal preference.

Figure 6.15: Available LED key light color options.
7. Maintenance
- Cleaning the Screen: Use a soft, lint-free cloth to wipe the touchscreen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid harsh chemicals.
- General Cleaning: Keep the unit free from dust and debris. Use a soft brush or compressed air to clean around buttons and ports.
- Software Updates: Periodically check the SJOYBRING official website for any available software updates. Updates can improve performance, add features, or fix bugs. Follow the instructions provided with the update file carefully.
8. Troubleshooting
If you encounter issues with your SJOYBRING car stereo, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | Incorrect wiring; Blown fuse; No power supply. | Check power connections (B+, ACC, GND). Verify vehicle fuses and the unit's fuse. Ensure constant and switched 12V power are present. |
| No sound or distorted sound. | Incorrect speaker wiring; Volume too low; EQ settings. | Check all speaker wire connections for correct polarity and shorts. Increase volume. Adjust EQ and fader/balance settings. |
| Touchscreen unresponsive or dim. | System error; Overheating; Brightness setting. | Perform a system reset (locate the RST button, usually a small pinhole). Allow unit to cool down if overheating. Adjust screen brightness in settings. |
| CarPlay/Android Auto not connecting. | Faulty USB cable; Phone settings; App issues. | Try a different, high-quality USB cable. Ensure CarPlay/Android Auto is enabled on your phone. Restart both phone and stereo. |
| Backup camera not displaying. | Incorrect camera wiring; Faulty camera; Reverse trigger issue. | Check camera video input connection. Verify the brown reverse trigger wire is correctly connected to the reverse light. Test camera power supply. |
| Bluetooth pairing issues. | Bluetooth not enabled; Incorrect pairing procedure. | Ensure Bluetooth is enabled on both devices. Delete previous pairings and try pairing again. Keep devices close during pairing. |
If the problem persists after trying these solutions, please contact SJOYBRING customer support for further assistance.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | SJOYBRING |
| Model Name | A018 (JOY-A018) |
| Display | 7-inch HD Capacitive Touch Screen |
| Display Resolution | 1024 x 600 pixels |
| Video Playback Resolution | Up to 1920 x 1080P |
| Connectivity | Bluetooth 5.2, USB, AUX, TF-card |
| Special Features | Apple CarPlay, Android Auto, Mirror Link, Dash Cam Input, Backup Camera Input, 16-Band Equalizer, Steering Wheel Control, 7-Color LED Key Light |
| Dash Cam Angle | 150° Ultra-wide angle |
| Backup Camera Angle | 170° Ultra-wide angle |
| Power Supply | 12V DC (Negative Ground) |
| Item Weight | 2.75 pounds (approx. 1.25 kg) |
| Product Dimensions | 3.26 x 7 x 3.93 inches (82 x 178 x 100 mm) |
| Supported Dash Sizes | 173×98mm, 178×100mm, 190×116mm |
10. Warranty and Support
SJOYBRING is committed to providing high-quality products and excellent customer service. For any questions, technical support, or warranty inquiries, please contact our customer service team.
- Customer Service: Refer to your purchase platform or the SJOYBRING official website for contact information.
- Online Resources: Additional support, FAQs, and software updates may be available on the SJOYBRING website.
- User Manual (PDF): A downloadable PDF version of the user manual is available for your convenience: Download PDF Manual.






