1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Junsun 8.4-inch Android 13 Car Radio Stereo. Please read this manual thoroughly before using the product to ensure proper function and safety. This head unit is designed for Dodge Charger and Challenger models manufactured between 2015 and 2019.
2. Setup and Installation
Before beginning installation, ensure your vehicle's battery is disconnected to prevent electrical damage. Refer to your vehicle's owner's manual for specific battery disconnection procedures.
2.1 Package Contents
Verify all components are present before starting installation. The package typically includes:
- Junsun 8.4-inch Android 13 Head Unit
- Power Harness
- Audio Antenna
- 4G Module
- GPS Module
- External Microphone
- Factory USB Cable
- RCA Cable
- Reverse Cable
- Installation Tools (Screwdriver, Crowbar)
- Instructions Manual

Figure 2.1: Included assembly parts list for the Junsun car radio stereo.
2.2 Disconnecting the Car Battery
Locate your car battery, typically in the trunk or under the hood. Use a 10mm socket wrench to disconnect the negative terminal first, then the positive terminal. This step is crucial for safety during electrical work.
Figure 2.2: Image showing the car battery location and tools for disconnection.
2.3 Removing the Old Head Unit
Carefully use the provided crowbar tools to pry open the dashboard trim surrounding the existing head unit. Work slowly to avoid damaging the plastic clips. Once the trim is loose, remove any screws securing the old head unit and gently pull it out to access the wiring.
Video 2.1: Dodge Charger Dodge Challenger Car Radio Installation Video (4:15). This video provides a step-by-step guide on how to remove the existing car radio stereo from your vehicle.
Video 2.2: Car Radio Upgrade for Dodge Charger Challenger 2015 to 2019 (3:22). This video illustrates the process of upgrading the car radio, including removal of the old unit.
2.4 Wiring and Connecting the New Head Unit
Connect the provided wiring harness to the new Junsun head unit and then to the vehicle's existing wiring. Ensure all connections are secure. Pay attention to the audio plugs based on your car's original configuration (high/low or with AMP). Connect the 4G module, GPS module, radio antenna, and USB cables as indicated in the wiring diagram.

Figure 2.3: Detailed wiring diagram and assembly parts for connecting the head unit.
Video 2.3: Dodge Charger Dodge Challenger Car Stereo Replacement (0:39). This video shows the connection of the new head unit's wiring.
2.5 Securing the New Head Unit and Reassembling the Dashboard
Once all connections are made and tested, carefully slide the new head unit into place and secure it with screws. Reattach the dashboard trim, ensuring all clips are properly engaged. Reconnect the car battery.
3. Operating Instructions
Your Junsun Android 13 Car Radio Stereo offers a range of features for an enhanced driving experience.
3.1 Android 13 System Overview
The unit runs on the Android 13 operating system, providing a smooth and fast user interface. Navigate through apps and settings using the responsive 8.4-inch touchscreen.
Video 3.1: 8.4 inch Stereo Radio for Dodge Challenger Charger 2015-2021 (0:49). This video showcases the general operation and user interface of the stereo.
3.2 Wireless CarPlay & Android Auto
Connect your iPhone or Android phone wirelessly to access features like address book, notifications, messages, map navigation, and music directly on the stereo display. This allows for safe and convenient use of your smartphone's functionalities while driving.

Figure 3.1: The in-car display showing the CarPlay and Android Auto interfaces.
3.3 GPS Navigation & WiFi Connectivity
The unit supports online maps when connected to WiFi, allowing for real-time navigation. You can also install or delete Android applications from the Application Store, similar to a smartphone.

Figure 3.2: The GPS navigation interface on the stereo display.

Figure 3.3: Illustration of WiFi connectivity for various applications.
3.4 Bluetooth Functionality
Utilize Bluetooth for hands-free calling and wireless audio streaming. The built-in microphone ensures clear call quality. Pair your device through the Bluetooth settings menu.

Figure 3.4: The Bluetooth 5.0 interface for phone and music functions.
3.5 Steering Wheel Control
The unit supports existing steering wheel controls, allowing you to adjust volume and change radio stations without taking your hands off the wheel, enhancing driving safety.

Figure 3.5: In-car view demonstrating steering wheel control integration.
3.6 Split-Screen Display
The split-screen feature allows for simultaneous display of multiple applications, such as navigation and music, improving multitasking efficiency.
3.7 FM Radio
Access and control FM radio stations directly from the touchscreen interface.

Figure 3.6: The FM radio interface on the stereo display.
3.8 Rear View Camera Support
The unit supports a rear view camera, providing a clear display for safer reversing maneuvers.

Figure 3.7: In-car display showing the rear view camera feed.
4. Maintenance
Regular cleaning of the screen with a soft, dry cloth is recommended. Avoid abrasive cleaners. For screen replacement, follow the detailed instructions below.
4.1 Screen Replacement
If your screen experiences issues such as delamination, bubbles, random touches, or unresponsiveness, it may require replacement. The following videos provide guidance on replacing the 8.4-inch Uconnect LCD touch screen.
Video 4.1: Replacement 8.4" UConnect 4C UAQ Screen With LCD+Digitizer (1:35). This video guides you through the process of replacing the screen and digitizer.
Video 4.2: Premium 8.4" Uconnect Touch-Screen Replacement LCD Radio (0:52). This video shows the replacement procedure for the touch-screen LCD radio.
5. Troubleshooting
If you encounter issues with your Junsun car radio stereo, please refer to the following common troubleshooting steps:
- No Power: Check all power connections and ensure the car battery is properly reconnected. Verify the fuse is intact.
- No Sound: Check speaker wiring connections. Ensure the volume is not muted or set too low. Verify audio output settings.
- Touchscreen Unresponsive: Perform a soft reset of the unit. If the issue persists, consider a screen replacement as detailed in the Maintenance section.
- Bluetooth Connection Issues: Ensure Bluetooth is enabled on both the head unit and your mobile device. Delete previous pairings and attempt to re-pair.
- GPS Signal Loss: Ensure the GPS antenna is properly installed and has a clear view of the sky.
For persistent issues, please contact Junsun customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | Junsun |
| Model | B0D37SXFM8 |
| Operating System | Android 13 |
| Display Size | 8.4 Inches |
| Display Type | LCD |
| Touch Screen Type | Capacitive |
| Memory Storage Capacity | 64 GB |
| Audio Output Mode | Stereo |
| Mounting Type | Dashboard Mount |
| Item Weight | 4.2 pounds |
| Package Dimensions | 10.59 x 9.33 x 6.38 inches |
| Vehicle Service Type | Car |
7. Warranty and Support
For warranty information or technical assistance, please refer to the contact details provided with your product packaging or visit the official Junsun website. Keep your purchase receipt as proof of purchase for warranty claims.





