Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Realdio 2+64GB Android 15 Car Radio. This unit is designed to enhance your driving experience with advanced features such as Wireless CarPlay, Android Auto, GPS navigation, Bluetooth connectivity, and a 9-inch touch screen. Please read this manual thoroughly before use to ensure proper functionality and safety.
Product Overview
The Realdio Android 15 Car Radio is a state-of-the-art infotainment system specifically designed for Mazda MX-5 NC Miata models from 2006 to 2015. It features a responsive 9-inch IPS touch screen and runs on Android 15, offering a modern interface and extensive capabilities.

Image: The Realdio Android 15 Car Radio seamlessly integrated into a Mazda MX-5 Miata dashboard after installation.
Key features include:
- Wireless CarPlay & Android Auto: Seamless smartphone integration for navigation, calls, messages, and music.
- GPS Navigation: Built-in GPS with support for online and offline navigation apps.
- WiFi Hotspot: Connect to the internet for app downloads and online services.
- Bluetooth Hands-Free Calling & Audio Streaming: Safe communication and wireless music playback.
- FM/RDS Radio: High-quality radio receiver for news and entertainment.
- Customizable UI Themes: 26 desktop themes to personalize the interface.
- Split-Screen Functionality: Run two applications simultaneously on the screen.
- Backup Camera Input: Supports AHD backup camera for enhanced safety.
- Steering Wheel Control: Compatible with existing steering wheel buttons.
What's in the Box
Verify that all components are present in your package:
- Realdio Android Stereo for Mazda MX-5 Miata
- Power Cable
- Original USB Cable
- RCA Harness
- GPS Antenna
- AHD Backup Camera
- External Microphone
- Rear Camera Input Cable
- Dual USB Cable
- Installation Tool

Image: Visual representation of the product dimensions and a comprehensive list of all included accessories and cables.

Image: Detailed view of the car radio's port connections and a numbered list of all items in the package for easy identification.
Setup and Installation
Professional installation is recommended. Ensure the vehicle's power is disconnected before beginning installation.
Vehicle Compatibility
This unit is compatible with Mazda MX-5 NC Miata models from 2006 to 2015. If you are unsure about compatibility, please consult with a professional or contact Realdio support with your car's model and pictures.

Image: A side-by-side comparison showing the original car radio setup and the new Realdio unit installed in a Mazda MX-5 Miata.
Wiring Connections
- No Sound Problem: If you experience no sound after installation, connect the "AMP CTRL" wire of the power cable to the red ACC wire.
- Rear View Camera Wiring: The reverse input cable must be plugged in, even if a reverse camera is not being used, to avoid affecting Bluetooth and WiFi signal reception.

Image: A visual guide detailing the correct wiring for the reversing camera and the critical 'AMP CTRL' connection to resolve potential sound issues.
Steering Wheel Control (SWC)
Without CANBUS Decoder: Connect the plugs or the steering wheel control wires (Key1/Key2) in the power cable to the corresponding port or wire of your original car. Then, go to "SWC" in the settings and manually match to activate the button functions.
With CANBUS Decoder: Connect the CANBUS before powering on the radio. Navigate to Car Settings > Factory (000000) > CarType Setting to ensure SWC works properly. Select the correct brand and model year for your CANBUS decoder.

Image: Illustration of steering wheel controls and the interface for configuring them, including notes for CANBUS and non-CANBUS systems.
Operating Instructions
General Interface Navigation
The main interface displays various application icons. Tap an icon to launch the corresponding function. Swipe down from the top of the display to access the drop-down menu for system notifications, brightness adjustment, volume control, and network settings.
Video: A demonstration of the Realdio MT8163 unit's various functions, including UI navigation, media playback, and settings adjustments.
Wireless CarPlay & Android Auto
Connect your smartphone wirelessly to access navigation, communication, and entertainment apps directly on the car radio screen. This unit supports both Wireless CarPlay and Android Auto.

Image: A visual guide to connecting your smartphone for Wireless CarPlay, Android Auto, and Mirror Link functionalities.
Connection Steps:
- Ensure Bluetooth is enabled on your smartphone and the car radio.
- Pair your phone with the car radio via Bluetooth. The device name is typically "CarBT".
- Open the Zlink application on the car radio.
- Follow the on-screen prompts to establish the CarPlay or Android Auto connection.
Video: A demonstration of the wireless CarPlay and Android Auto connection process, showing Bluetooth pairing and Zlink activation.
GPS Navigation & WiFi Hotspot
The unit has built-in GPS. Connect to a WiFi hotspot (e.g., from your smartphone) to use online navigation apps or download offline maps from the Google Play Store.

Image: Display of the WiFi connection interface and various GPS navigation applications available on the unit.
Bluetooth Hands-Free Calling & FM/RDS Radio
Pair your phone via Bluetooth for hands-free calls and wireless music streaming. The FM/RDS radio allows you to tune into your favorite stations and receive real-time broadcast information.

Image: The FM/RDS radio tuning screen and the Bluetooth interface for managing calls and playing music.
UI Themes and Split-Screen
Personalize your experience with 26 available desktop themes. The split-screen function allows you to view and interact with two applications simultaneously, such as navigation and music playback.

Image: Examples of different user interface themes and the split-screen mode displaying two apps concurrently.
Rear View Camera
The included AHD backup camera provides a clear view of the area behind your vehicle when reversing, enhancing safety and ease of parking.

Image: The rear view camera unit and a simulated display of its output on the car radio screen, showing parking guidelines.
Maintenance
To ensure the longevity and optimal performance of your Realdio car radio, follow these general maintenance guidelines:
- Regularly clean the touch screen with a soft, lint-free cloth. Avoid abrasive cleaners.
- Keep the unit free from dust and debris.
- Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods.
- Ensure all cable connections are secure to prevent intermittent issues.
- Periodically check for software updates to improve performance and add new features.
Troubleshooting
If you encounter issues with your Realdio car radio, refer to the following common troubleshooting steps:
- No Power: Check all power connections. Ensure the ACC wire is correctly connected. Verify the vehicle's fuse box for any blown fuses.
- No Sound: Confirm the "AMP CTRL" wire is connected to the red ACC wire. Check speaker connections and audio settings.
- Bluetooth/WiFi Issues: Ensure the reverse input cable is properly connected. Restart the unit and your smartphone. Check Bluetooth and WiFi settings on both devices.
- Touch Screen Unresponsive: Restart the unit. If the issue persists, perform a factory reset (note: this will erase all personal data).
- GPS Inaccurate: Ensure the GPS antenna is installed in a clear location with an unobstructed view of the sky.
- Steering Wheel Controls Not Working: Recheck wiring connections (Key1/Key2). Verify settings in the "SWC" menu or "CarType Setting" for CANBUS systems.
For persistent issues, please contact Realdio customer support.
Specifications
| Feature | Specification |
|---|---|
| Item Weight | 3.19 pounds |
| Package Dimensions | 11.02 x 9.84 x 3.94 inches |
| Item Model Number | 2+64GB |
| Display Size | 9 Inches |
| Operating System | Android OS |
| RAM | 2GB |
| ROM | 64GB |
| Connectivity Technology | Bluetooth, USB, Wi-Fi, FM/RDS, RCA |
| Map Type | North America |
| Audio Output Mode | APE/FLAC/WAV/MP3/WMA etc |
| Mounting Type | Dashboard Mount |
Warranty and Support
Your Realdio car radio comes with a 1 Year Warranty from the date of purchase.
For technical assistance, installation guidance, or warranty claims, please contact Realdio customer support. Realdio offers professional installation manuals and videos, along with lifetime technical support.
You can typically find contact information on the seller's page or through the retailer where the product was purchased.