1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Realdio Android 15 Car Radio. 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.

Figure 1: Realdio Android 15 Car Radio with included accessories.
2. Setup and Installation
2.1 Package Contents
Before beginning installation, verify that all components are present:
- Realdio Android Stereo for Ford Mustang
- Power Cable
- Canbus Box
- Dual RCA Harness
- GPS Antenna
- AHD Backup Camera
- External Microphone
- Dual Rear Camera Input Cable
- Dual USB Cable
- Installation Tool and Accessories

Figure 2: Detailed view of included components and accessories.
2.2 Compatibility and Pre-Installation
This unit is designed for Ford Mustang models with Manual A/C from 2015 to 2020. Ensure your vehicle matches this specification for proper fitment and functionality.

Figure 3: Visual guide for compatible and incompatible dashboard configurations.
2.3 General Installation Steps
Refer to the following general steps for installation. Professional installation is recommended.
- Remove the hardware from the back of the host unit and the display screen.
- Install the display screen, original car motherboard, and original car buttons onto the large screen navigation frame.
- Fix the accessories with screws.
- Extend the host, screen cable, and touch screen cable, ensuring accompanying hardware is installed.
- Install the host hardware module.

Figure 4: Visual steps for hardware assembly and installation.
2.4 Wiring Instructions
Ensure proper connection of the power cable's red and white RCA ports to the corresponding ports of the RCA harness.
Reversing Camera Wiring
The reverse input cable must be plugged in, even if a reverse camera is not used, to prevent interference with Bluetooth and Wi-Fi signal reception.
- Red Cable (1): Connects to the positive terminal of the car's reverse light cable.
- Black Cable (2): Connects to the negative terminal of the car's reverse light cable.
- There is no need to connect the other two red extension cables (3) and (4).

Figure 5: Reversing camera and Canbus wiring diagram.
3. Operating Instructions
3.1 Wireless CarPlay & Android Auto
The unit supports wireless CarPlay and Android Auto, allowing seamless integration with your smartphone. Access navigation, calls, messages, and music directly from the car stereo. Voice assistants like Siri or Google Assistant can be activated for hands-free control.

Figure 6: Wireless CarPlay, Android Auto, and Mirror Link interfaces.

Figure 7: Wireless connectivity for CarPlay and Android Auto.
3.2 GPS Navigation & WiFi Hotspot
The unit features built-in GPS for navigation. You can use online navigation apps (requires WiFi connection) or download offline maps from the Google Play Store. Connect to a WiFi hotspot for internet access and app downloads.

Figure 8: GPS Navigation and WiFi Hotspot features.
3.3 Bluetooth 5.0 & FM/RDS Radio
Bluetooth 5.0 enables hands-free calling with the built-in microphone and wireless music streaming. The high-quality FM/RDS radio receiver allows you to listen to broadcasts and real-time news.

Figure 9: Bluetooth 5.0 and FM/RDS Radio interfaces.
3.4 UI Themes and Split-Screen Functionality
Personalize your experience with various desktop themes. The split-screen feature allows you to run two applications simultaneously, such as navigation and music playback.

Figure 10: UI themes and split-screen in action.
3.5 Steering Wheel Control
The unit supports steering wheel controls for convenience.
- Without CANBUS Decoder: Connect the plugs or steering wheel control wires (Key1/Key2) in the power cable to the corresponding port or wire of your original car. Then, go to "SWC" manual match to activate the button function.
- With CANBUS Decoder: Connect the Canbus before powering on the radio. Follow the path: Apps Settings -> Factory Settings (8888/8317) -> Vehicle -> Automotive Type. Select the brand of the Canbus decoder and then the matching model and year.

Figure 11: Steering wheel control interface.

Figure 12: Steering wheel control setup with and without CANBUS.
3.6 Rear View Camera
When connected, the rear view camera automatically displays the rear view on the screen when the vehicle is in reverse, providing parking assistance with dynamic guidelines.

Figure 13: Rear view camera display and features.
3.7 Function Demonstration Video
Watch this video for a demonstration of the various functions and features of the Realdio Android Car Radio.
Video 1: Realdio-RK3326S-Demonstration of Each Function. This video showcases the user interface, FM/RDS radio, split-screen function, equalizer settings, and rear view camera operation.
4. Maintenance
To ensure the longevity and optimal performance of your Realdio Android Car Radio, follow these general maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the screen and exterior. Avoid abrasive cleaners or solvents that could damage the surface.
- Software Updates: Periodically check for and install available software updates to ensure you have the latest features and security enhancements.
- Temperature: Avoid exposing the unit to extreme temperatures, both hot and cold, for extended periods.
- Power Management: Ensure your vehicle's electrical system is in good condition to prevent power fluctuations that could affect the unit.
5. Troubleshooting
If you encounter issues with your Realdio Android Car Radio, refer to the following common troubleshooting steps:
- No Power: Check all power connections and fuses. Ensure the vehicle's ignition is on.
- No Sound: Verify speaker connections. Check volume levels and ensure the mute function is not active. Confirm audio output settings.
- Bluetooth Connectivity Issues: Ensure Bluetooth is enabled on both the car radio and your device. Try unpairing and re-pairing the devices.
- GPS Signal Loss: Ensure the GPS antenna is properly installed and has a clear view of the sky.
- Touchscreen Unresponsive: Try restarting the unit. If the issue persists, a factory reset might be necessary (note: this will erase personal data).
- Rear Camera Not Displaying: Check the camera's power and video signal connections. Ensure the reverse input cable is correctly connected.
For persistent issues, contact customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Item Weight | 5.02 pounds |
| Package Dimensions | 14.57 x 12.2 x 3.54 inches |
| Display Size | 9 Inches |
| Voice Command | Microphone, Touchscreen |
| Connectivity Technology | Bluetooth, USB, Wi-Fi, FM/RDS, RCA |
| Controller Type | Android, iOS |
| Special Features | Android OS, 4GB RAM, 64GB ROM, Bluetooth 5.0, Responsive Touchscreen, Wireless CarPlay & Android Auto, GPS Navigation, WiFi Connection, Mirror Link, FM/RDS Radio, 32 EQ, Steering Wheel Control, Backup Camera Input, Split Screen Function, Double USB Port |
| Compatible Devices | Smartphone |
| Connector Type | RCA, USB |
| Audio Output Mode | APE/FLAC/WAV/MP3/WMA etc |
| Surround Sound Channel Configuration | 4 |
| Video Encoding | MKV/RMVB/AVI/MP4/MDV etc |
| Output Power | 45 Watts |
7. Warranty and Support
Realdio is committed to providing excellent customer service and support for your car radio.
- Warranty: The product comes with a 1-Year Warranty.
- Returns: Enjoy 60 Days Free Return for Refund or Exchange.
- Technical Support: Lifetime Technical Support is available from our dedicated team.
- Response Time: Expect a fast response within 24 hours for inquiries.
- Installation Assistance: Professional installation manual and video resources are provided to assist with setup.

24 Hours Fast Response

Professional Installation Manual and Video

60 Days Free Return

Lifetime Technical Support Team