1. Introduction
Thank you for choosing the j Junsun Car Radio Stereo Head Unit. This manual provides detailed instructions for the installation, operation, and maintenance of your new car stereo. Please read this manual thoroughly before use to ensure proper functionality and to maximize your user experience.
This head unit is designed to seamlessly integrate with your vehicle, offering advanced features such as wireless CarPlay, Android Auto, Bluetooth connectivity, Wi-Fi support, and GPS navigation. It enhances your driving experience with modern infotainment capabilities.
2. Safety Information
Always prioritize safety while operating your vehicle. Distracted driving can lead to accidents. Ensure all connections are secure and properly insulated to prevent electrical hazards.
- Do not attempt to install or repair the unit if you are not qualified. Consult a professional installer.
- Do not operate the unit in a way that distracts you from driving.
- Keep the unit away from water and excessive moisture.
- Ensure the vehicle's ignition is off before performing any wiring or installation.
3. Package Contents
Verify that all items listed below are included in your package. If any items are missing or damaged, please contact customer support.

Image: Included components of the j Junsun Car Radio Stereo Head Unit.
- 9-inch Head Unit Display
- Microphone
- GPS Module
- USB Cables (x2)
- Can Bus Decoder
- Power Cable Harness
- RCA Cable Set
- Reversing Line (for backup camera, if applicable)
- Dash Kit (specific to vehicle model)
- Screwdriver
- Crowbar (plastic pry tool)
- Radio Antenna Adapter
4. Setup and Installation
4.1 Vehicle Compatibility
This head unit is specifically designed for the following vehicle models:
- Dodge Grand Caravan: 2008-2020
- Chrysler Town & Country: 2011-2016

Image: Head unit installed in a compatible vehicle dashboard.
4.2 Wiring and Connections
Carefully follow the wiring diagram provided with your unit. Ensure all connections are secure to prevent intermittent issues or damage.

Image: Audio cable connection diagram for different vehicle amplifier configurations.
Key Connections:
- Power Harness: Connect the main power harness to the vehicle's wiring. Ensure the CAN Bus decoder is correctly connected if your vehicle requires it for steering wheel controls or other integrated functions.
- GPS Module: Connect the GPS antenna and place it in a location with a clear view of the sky (e.g., on the dashboard).
- USB Cables: Route the USB cables to an accessible location for connecting external devices or for wired Android Auto.
- Microphone: Connect the external microphone for clearer hands-free calls. Position it near the driver for optimal voice pickup.
- RCA Cables: Use these for connecting external amplifiers, subwoofers, or video output/input devices.
- Reversing Line: Connect this to your vehicle's reverse light signal and a compatible backup camera for automatic display when reversing.
4.3 Physical Installation
- Carefully remove the original car radio using the provided crowbar and screwdriver.
- Connect all necessary wiring harnesses to the new head unit.
- Mount the head unit into the dashboard opening, ensuring it fits securely with the provided dash kit.
- Secure the unit with screws.
- Reassemble the dashboard trim panels.
- Test all functions before finalizing the installation.
5. Operating Instructions
5.1 Power On/Off and Basic Controls
- Power Button: Press and hold to turn the unit on or off. A short press typically mutes/unmutes audio.
- Volume Control: Use the on-screen controls or steering wheel buttons to adjust volume.
- Home Button: Returns to the main menu.
- Back Button: Navigates back to the previous screen.
5.2 Wireless CarPlay & Android Auto
This unit supports both wireless CarPlay for iPhone users and wired/wireless Android Auto for Android users.

Image: Wireless CarPlay and Android Auto interfaces.
For Wireless CarPlay:
- Enable Bluetooth on your iPhone.
- Pair your iPhone with the car radio via Bluetooth.
- Open the 'Zlink5' application on the head unit. CarPlay should automatically connect.
For Wireless/Wired Android Auto:
- Ensure you have the 'Android Auto' app installed on your Android phone.
- For wired connection, connect your phone to the radio via the original USB cable. For wireless, connect via Bluetooth.
- Open the 'Zlink5' application on the head unit. Android Auto should automatically connect.
5.3 Bluetooth Connectivity
The built-in Bluetooth allows for hands-free calling and audio streaming.

Image: Bluetooth hands-free calling interface.
- Pairing: Go to the Bluetooth settings on the head unit and your phone. Search for available devices and select the head unit's name to pair.
- Hands-Free Calling: Once paired, you can make and receive calls directly from the head unit's screen.
- Bluetooth Music: Stream audio from your phone to the car speakers.
5.4 Wi-Fi Connection
Connect the head unit to a Wi-Fi hotspot (e.g., from your smartphone) to access online features like streaming music, online navigation, and app downloads.

Image: Wi-Fi connectivity for online content.
- Go to Settings > Network & Internet > Wi-Fi.
- Select your desired Wi-Fi network and enter the password.
5.5 GPS Navigation
The unit features built-in GPS for both online and offline navigation applications.

Image: GPS navigation interface.
- Ensure the GPS module is properly connected and placed.
- Access the navigation app from the main menu.
- Input your destination and follow the on-screen directions.
5.6 Split Screen Functionality
The split-screen feature allows you to run two applications simultaneously on the display, such as navigation and music playback.

Image: Split-screen mode displaying navigation and music.
- To activate, open one application, then long-press the recent apps button or drag an app to one side of the screen (depending on the specific UI).
- Select a second application to fill the other half of the screen.
5.7 FM Radio
Tune into your favorite FM radio stations with the built-in tuner.

Image: FM Radio interface.
- Access the 'Radio' application from the main menu.
- Use the scan function to find stations or manually tune to a specific frequency.
- Save your favorite stations as presets.
5.8 Steering Wheel Control
The unit supports integration with your vehicle's existing steering wheel controls for convenient operation.

Image: Steering Wheel Control learning interface.
- Navigate to the 'Steering Wheel Control' settings in the unit's menu.
- Follow the on-screen instructions to program each button on your steering wheel to the desired function (e.g., volume up/down, track skip, mode change).
5.9 Built-in DSP (Digital Sound Processor)
The integrated DSP allows for advanced audio customization, including equalization, sound field adjustments, and bass enhancement.

Image: DSP audio customization interface.
- Access the 'Sound' or 'DSP' settings from the main menu.
- Adjust equalizer bands, fader/balance, and other sound effects to optimize audio output.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your head unit.
- Cleaning: Use a soft, dry cloth to clean the screen and exterior. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid abrasive materials or harsh chemicals.
- Software Updates: Periodically check the manufacturer's website or the unit's settings for available software updates to ensure you have the latest features and bug fixes.
- Temperature: Avoid exposing the unit to extreme temperatures for prolonged periods.
7. Troubleshooting
If you encounter issues, refer to the following common problems and solutions before contacting support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Loose power connection, blown fuse | Check power cables and vehicle fuses. Ensure proper grounding. |
| No sound | Incorrect audio cable connection, muted volume | Verify all audio cables are securely connected (refer to wiring diagram). Check volume level and mute status. |
| Bluetooth connection unstable | Interference, phone issues, outdated firmware | Ensure no other devices are interfering. Restart phone and head unit. Check for firmware updates. |
| GPS signal weak/lost | GPS antenna placement, environmental factors | Ensure GPS antenna has a clear view of the sky. Avoid placing near metal obstructions. |
| Touchscreen unresponsive | Software glitch, excessive heat | Restart the unit. Allow unit to cool down if overheated. |
8. Specifications
| Feature | Detail |
|---|---|
| Model | 2GB+32GB |
| Display Size | 9 Inches |
| Item Weight | 3.23 pounds |
| Package Dimensions | 11.57 x 7.8 x 5.08 inches |
| Controller Type | Touch Screen |
| Compatible Devices | Smartphone |
| Audio Output Mode | Stereo |
| Audio Output Type | Speakers |
| Wireless Communication Technology | Bluetooth, Wi-Fi |
9. Warranty and Support
j Junsun provides technical support for its products. For any issues not covered in this manual or for warranty inquiries, please contact our customer service team.

Image: Information on how to access 24-hour technical support.
Contacting Support:
- Refer to your purchase platform for direct seller contact options.
- Look for the 'Ask a question' link on the seller's page or your order details.
Warranty Information:
Please retain your proof of purchase for warranty claims. The warranty period and terms are subject to the policies of the retailer and manufacturer at the time of purchase. For detailed warranty information, please refer to the documentation included with your product or contact j Junsun customer support.