1. Introduction
This manual provides instructions for the installation, operation, and maintenance of your JOYING JY-UZD80N8 Double Din Car Stereo. This device features an 8-inch touch screen, Android 12 operating system, 8GB RAM, 128GB ROM, Wireless CarPlay, Android Auto, GPS navigation, and supports Mirror-Link and Steering Wheel Control (SWC).
Please read this manual thoroughly before using the product to ensure proper operation and to prevent damage.
Figure 1: Front view of the JOYING JY-UZD80N8 Car Stereo.
Figure 2: Illustration of the ultra-thin full-fit screen design, highlighting its high brightness and clear display.
2. Safety Information
- Always ensure the vehicle is parked safely before operating the car stereo's advanced features.
- Do not attempt to install or service the unit yourself if you are not qualified. Improper installation can lead to electrical shock or damage to the vehicle.
- Keep the volume at a level that allows you to hear outside traffic and emergency vehicles.
- Avoid exposing the unit to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
- Use only accessories and parts specified by JOYING.
3. Package Contents
Verify that all items are present in the package:
- 8-inch Radio Unit x 1
- Universal ISO Harness x 1
- 4G Antenna x 2
- USB Cable x 2
- External Microphone x 1
- GPS Antenna x 1
- User Manual x 1
Figure 3: Overview of the car stereo's rear connections and included accessories.
4. Installation
Installation of this car stereo may require specific tools and knowledge of car audio systems. It is recommended to seek professional installation to ensure correct wiring and functionality.
- An installation frame kit with an inner size of 178 x 102mm may be required, depending on your car's dashboard.
- A special ISO harness, amplifier adapter, or CANbus decoder might be necessary based on your vehicle's configuration.
- The unit does not support factory car GPS antennas, backup cameras, Bluetooth, USB, or microphones. Only JOYING accessories are supported for optimal compatibility.
Figure 4: Rear panel connections for the car stereo, including power, audio, and accessory ports.
5. Setup
5.1 Initial Boot-up
Upon inserting the car key, the stereo will start up and enter the user interface within 2 seconds. The very first boot-up may take approximately 30-40 seconds.
5.2 4G SIM Card Insertion
The unit features a built-in 4G module. To access the internet, insert a compatible SIM card. Note that the 4G module supports internet access only and cannot be used for phone calls or sending SMS messages.
Supported 4G LTE bands include: FDD-LTE: B2/B4/B5/B7/B12/B13/B14/B17/B25/B26/B38/B66/B71; TDD-LTE: B41.
Figure 5: Steps for inserting a 4G SIM card into the designated slot.
6. Operating Instructions
6.1 User Interface (UI)
The car stereo features a deep-optimized user interface based on Android 12, designed for intuitive use while driving.
- Day & Night Mode: The display automatically adjusts brightness for optimal visibility during day and night driving conditions.
- New Gesture Control: Control the screen with simple two-finger gestures (slide up, slide down, slide left, slide right) for convenient operation.
- Floating Shortcut Key: Access frequently used functions quickly via a customizable floating shortcut key on the left side of the screen.
Figure 6: Deep-optimized user interface showing navigation, music, and radio applications.
Figure 7: Visual representation of Day & Night Mode, new gesture controls, and the floating shortcut key.
6.2 Car-smartphone Connectivity (Wireless CarPlay & Android Auto)
Connect your mobile phone via USB cable or Bluetooth to utilize Wireless CarPlay or Android Auto. This allows you to access your phone's applications, navigation, make calls, and listen to music directly from the car stereo's larger screen. The unit has built-in Android Auto and CarPlay modules, requiring no additional devices.
Figure 8: Display of Wireless CarPlay and Android Auto interfaces.
6.3 GPS Navigation
The stereo includes precise GPS engines and an antenna for accurate positioning and faster real-time navigation. You can download Google offline map data for specific areas and use it without an internet connection. Mobile phone map data can also be synchronized via CarPlay/Android Auto.
Figure 9: GPS navigation screen displaying map and destination search.
6.4 Audio Features (Built-in DSP, Optical/Coaxial Digital Output)
The unit features a built-in Digital Signal Processor (DSP) with a 48-band EQ and 20 preset sound effects. This allows for precise audio customization, including independent adjustment of the subwoofer, mid-bass, mid-sound, mid-treble, and super-treble.
For enhanced sound quality, the stereo provides Optical Fiber and Coaxial Digital Outputs. If your external amplifier supports these inputs, you can achieve superior audio performance.
- EQ Setting: Adjust various frequency bands to tailor the sound output.
- DTS Scenes: Equipped with DTS5.1 panoramic surround sound effects and sound field correction for an immersive audio experience.
- High-precision Sound Processing: The DSP module performs high-precision digital processing for effects like reverberation, delay, distortion, and filtering.
Figure 10: Built-in DSP interface with various sound effects.
Figure 11: Detailed EQ settings and DTS scene selection.
Figure 12: High-precision sound processing controls for delay and crossover.
6.5 HDMI Output
The HDMI output provides a full digital image and sound-sending interface, allowing uncompressed audio and video signals to be output synchronously without manual adjustment. This is ideal for connecting external displays, such as headrest monitors for passengers.
Note: Due to the chassis design, an HDMI cable with a straight head is not supported. An L-shaped or angled HDMI cable is required. HDMI cable is not included.
Figure 13: HDMI output functionality for external display.
Figure 14: Examples of projection screen display and compatible HDMI cable types.
6.6 AR Camera Support
During driving, you can freely switch between the front and rear cameras to observe the surrounding environment. For optimal performance, it is recommended to purchase JOYING's AR camera, which is optimized for compatibility, clearer display, and more stable images during recording.
Figure 15: Front and rear camera views displayed on the stereo.
Figure 16: Recommendation for using JOYING's optimized AR camera.
7. Maintenance
- Cleaning the Screen: Use a soft, lint-free cloth to gently wipe the touch screen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid harsh chemicals or abrasive materials.
- General Cleaning: Keep the unit free from dust and debris. Use a soft brush or compressed air to clean vents and ports.
- Software Updates: Periodically check for software updates from JOYING to ensure optimal performance and access to new features.
8. Troubleshooting
If you encounter issues with your car stereo, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | Incorrect wiring; Blown fuse; Vehicle power issue | Check power connections; Inspect vehicle's fuse box; Consult a professional installer. |
| No sound output | Volume too low; Mute activated; Speaker wiring issue; Amplifier issue | Increase volume; Check mute settings; Verify speaker connections; Ensure external amplifier is powered. |
| Touch screen unresponsive | Software glitch; Screen calibration issue | Restart the unit; Perform a factory reset (refer to settings); Contact support if issue persists. |
| GPS signal lost or inaccurate | GPS antenna obstruction; Antenna not connected properly | Ensure GPS antenna has a clear view of the sky; Check antenna connection. |
| CarPlay/Android Auto not connecting | Bluetooth/USB connection issue; Phone software issue; Incompatible phone settings | Ensure Bluetooth is on and paired; Try a different USB cable; Update phone OS; Check phone's CarPlay/Android Auto settings. |
If the problem persists after attempting these solutions, please contact JOYING customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | JY-UZD80N8 |
| Display Size | 8 Inches |
| Screen Resolution | 1280x800P |
| Operating System | Android 12 |
| RAM & ROM | 8GB RAM + 128GB ROM |
| Processor | Qualcomm QCM6125 Octa Core 64bit ARM (4xA73@2.0GHz, 4xA53@1.8GHz) |
| GPU | Adreno™ 610@950 MHz |
| Connectivity Technology | Bluetooth, Ethernet, HDMI, USB, Wi-Fi, 4G |
| Special Features | Android Auto, Apple CarPlay, Built-in Bluetooth, RCA, RDS, Built-in DSP, Optical/Coaxial Digital Output |
| Mounting Type | Dashboard Mount |
| Audio Output Mode | Stereo |
| Map Type | North America (Offline maps supported) |
| Parcel Dimensions | 30.48 x 20.32 x 17.78 cm |
| Item Weight | 2.72 kg |
10. Warranty and Support
Warranty: This product comes with a 2-year warranty from the date of purchase.
Manufacturer: Joying
Place of Business: Shenzhen, Guangdong, China
Phone: (+86) 15017938181
Email: amjoying@gmail.com
For technical assistance, warranty claims, or any other inquiries, please contact JOYING customer support using the provided contact information.



