1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your MekedeTech M400S-8Core-4+64G Android Car Radio. This advanced head unit is designed to upgrade the in-car entertainment and navigation experience for compatible Lexus IS models. Please read this manual thoroughly before installation and use to ensure proper functionality and safety.
Image 1.1: MekedeTech Android Car Radio main unit.
2. Compatibility
The MekedeTech M400S-8Core-4+64G Android Car Radio is specifically designed for Lexus IS250, IS200, IS220, IS300, and IS350 models manufactured between 2005 and 2011. It is compatible with vehicles that have a low-level original system. Please verify your vehicle's dashboard configuration against the images below to confirm compatibility.
- Compatible: Lexus IS models 2005-2011 with standard radio or screen without factory navigation.
- Not Compatible: Lexus IS models 2010-2011 with a high-level factory navigation system (refer to ASIN B0BCWC94C1 for high-level compatibility).
- Not Compatible: Sport models with a sliding-top dashboard design.
Image 2.1: Visual guide for dashboard compatibility. The top two configurations are compatible, while the bottom configuration with factory navigation is not.
3. What's in the Box
Carefully unpack the box and ensure all components are present and undamaged. The package should contain the following items:
- Android Car Radio Stereo Head Unit
- Wiring Harness (vehicle-specific)
- Radio Removal Tools
- Antenna Adapter
- GPS Antenna
- 4G Antenna
- USB Cables (2x 6-pin, 1x 4-pin)
- RCA Cable Set
- External Microphone (MIC)
- Reversing Camera Input Cable
- Mounting Brackets
- CAN Bus Decoder Box
- User Manual (this document)
Image 3.1: Overview of included accessories such as power cables, RCA cables, USB cables, GPS antenna, 4G antenna, microphone, reversing camera cable, and CAN bus decoder.
4. Setup and Installation
Professional installation is recommended. Disconnect the vehicle's battery before beginning installation. Refer to your vehicle's service manual for specific dashboard disassembly instructions.
4.1. Pre-Installation Check
- Confirm vehicle compatibility (refer to Section 2).
- Ensure all components listed in Section 3 are present.
4.2. Wiring Connections
Carefully connect the wiring harness to the new head unit and the vehicle's existing wiring. Pay close attention to the following critical connections:
- Power Cable: Connect the main power cable to the vehicle's power supply.
- Radio Port: Ensure the radio antenna plug is connected to the new media center. If your original radio plug is integrated with the CD player power plug, separate them and connect the radio plug to the new unit.
- RX/TX Cable Port: This cable is essential for the proper functioning of the AC controls and steering wheel controls. Ensure it is securely plugged in.
- OEM AC Power Plug: Connect this to maintain AC functionality.
- OEM Backup Camera: Connect the OEM backup camera cable to the designated port if your vehicle has one.
- OBD Connection: Connect the OBD cable to the vehicle's OBD port, typically located under the steering wheel or above the pedals. This enables features like dynamic parking lines for the backup camera.
- GPS Antenna: Mount the GPS antenna in a location with a clear view of the sky, such as on the dashboard.
- 4G Antenna: Mount the 4G antenna for optimal signal reception.
- USB Cables: Route the USB cables to an accessible location, such as the glove compartment or center console, for connecting external devices.
Image 4.1: Rear view of the head unit, indicating ports for camera input, USB, RX/TX cable, radio, 5G WiFi, GPS antenna, 4G antenna, hazard light, AC control, cooling fan, and power cable.
Image 4.2: Comprehensive wiring diagram illustrating connections for the main unit, CD player, hazard light, AC control, OEM AC power, OEM backup camera, and OBD port. Note the importance of the RX/TX cable for AC and steering wheel control.
4.3. Mounting the Unit
Attach the provided mounting brackets to the sides of the head unit. Secure the unit into the dashboard opening using the appropriate screws. Ensure a snug fit to prevent vibrations.
Image 4.3: The car radio unit with mounting brackets attached, ready for installation into the dashboard.
4.4. Initial Power-Up and CAN Bus Configuration
After installation, reconnect the vehicle's battery. Power on the unit. You may need to configure the CAN Bus settings to ensure proper communication with your vehicle's systems, especially for AC controls and steering wheel functions.
- Navigate to the 'Factory Settings' or 'Car Settings' menu on the head unit.
- Locate the 'CAN Box Type' or similar option.
- Select the appropriate car brand (Lexus) and model (IS) from the list.
- Choose the correct configuration, typically 'LowConfig' for standard systems.
- Confirm settings and restart the unit if prompted.
Image 4.4: Screenshot of the CAN Box configuration interface, demonstrating how to select the car brand and model (Lexus IS) to ensure proper system integration.
Image 4.5: Comparison of the Lexus IS dashboard before and after the installation of the MekedeTech Android Car Radio, showcasing the integrated display.
5. Operating Instructions
This section details the primary functions and features of your Android Car Radio.
5.1. Wireless CarPlay and Wired Android Auto
The unit supports both wireless Apple CarPlay and wired Android Auto, allowing seamless integration with your smartphone for navigation, music, calls, and messaging.
- Wireless CarPlay: Connect your iPhone via Bluetooth first, then follow the on-screen prompts to activate wireless CarPlay.
- Wired Android Auto: Connect your Android phone via a USB cable to enable Android Auto.
Image 5.1: Display showing the user interface for iPhone CarPlay (wireless) and Android Auto (wired) on the head unit.
5.2. Steering Wheel Control (SWC)
Maintain control over essential functions directly from your vehicle's steering wheel buttons. This includes volume adjustment, track skipping, and mode switching, enhancing driving safety.
- Ensure the RX/TX cable is correctly connected during installation.
- If controls are reversed or not functioning, check the 'Factory Settings' or 'Steering Wheel Learning' menu to calibrate.
Image 5.2: Illustration of steering wheel controls being used to manage the car radio functions.
5.3. Bluetooth (BT) Function
The built-in Bluetooth 5.0 system enables hands-free calling and wireless audio streaming from your smartphone.
- Pairing: Go to the Bluetooth menu on the head unit, enable Bluetooth on your phone, search for the head unit's name, and pair.
- Hands-Free Calling: Make and receive calls directly through the head unit's interface.
- Audio Streaming: Play music from your phone wirelessly through the car's speakers.
Image 5.3: Screenshot of the Bluetooth dialing interface on the car radio, showing a phone connected and music notes indicating audio streaming.
5.4. GPS Navigation
The unit features a built-in GPS module with worldwide map support, providing reliable navigation without needing a smartphone connection.
- Ensure the GPS antenna is properly installed and positioned.
- Access the navigation application from the main menu.
- Maps can be updated via Wi-Fi or by connecting to a computer.
Image 5.4: A navigation map showing a route and current location on the car radio display.
5.5. Built-in DSP (Digital Sound Processor)
The integrated DSP system enhances audio quality, allowing for precise sound customization to suit your preferences.
- Access the DSP or Equalizer settings from the audio menu.
- Adjust frequency bands, balance, and fader settings for optimal sound.
Image 5.5: Screenshot of the DSP equalizer interface, showing adjustable frequency sliders for audio customization.
5.6. Split Screen Functionality
Multitask efficiently with the split-screen feature, allowing you to run two applications simultaneously, such as navigation and music playback.
- Drag an app icon to one side of the screen to activate split-screen mode.
- Select another app to occupy the remaining screen space.
Image 5.6: The car radio display showing split-screen mode, with a music player on the left and a navigation map on the right.
5.7. Rear View Camera Support
The unit supports AHD reversing video input, automatically displaying the rear view when the vehicle is shifted into reverse gear.
- Ensure the reversing camera input cable is correctly connected.
- If dynamic parking lines are desired, ensure the OBD connection is made and configured.
Image 5.7: A simulated view of the AHD reversing camera display, showing parking guidelines on the screen.
5.8. 4G LTE and Wi-Fi Connectivity
Stay connected on the go with support for 4G LTE via a SIM card (not included) and Wi-Fi connectivity.
- 4G LTE: Insert a compatible 4G SIM card into the designated slot for mobile data access.
- Wi-Fi: Connect to a Wi-Fi hotspot or your phone's hotspot for internet access.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your car radio.
- Screen Cleaning: Use a soft, lint-free cloth to clean the touchscreen. Avoid abrasive cleaners or solvents.
- Software Updates: Periodically check for available software updates through the unit's settings menu to ensure you have the latest features and bug fixes.
- Cable Connections: Ensure all cables remain securely connected. Loose connections can lead to intermittent issues.
- Environmental Conditions: Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods.
7. Troubleshooting
This section addresses common issues you might encounter. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | Loose power connection, blown fuse, incorrect wiring. | Check all power cable connections. Inspect vehicle fuses. Ensure correct wiring as per diagram. |
| AC controls not working or not appearing. | RX/TX cable not connected, incorrect CAN Bus settings, software issue. | Verify RX/TX cable connection. Check and configure CAN Bus settings (Section 4.4). Contact support if software is missing. |
| Steering wheel controls not functioning or reversed. | RX/TX cable not connected, incorrect CAN Bus settings, calibration needed. | Verify RX/TX cable connection. Check CAN Bus settings. Access 'Steering Wheel Learning' in settings to calibrate buttons. |
| No sound or poor sound quality. | Loose speaker wires, incorrect volume settings (old vs. new unit), DSP settings. | Check speaker wire connections. Ensure the original volume knob (if applicable) is set to a high level, and adjust volume via the head unit. Check DSP/Equalizer settings. |
| OEM backup camera not working. | Incorrect connection to OEM camera port, software configuration. | Ensure the OEM backup camera cable is correctly connected. Check 'Factory Settings' for camera input type and enable. |
| Bluetooth not connecting or dropping. | Pairing issue, interference, software glitch. | Ensure Bluetooth is enabled on both devices. Delete previous pairings and re-pair. Restart both devices. |
| GPS signal weak or inaccurate. | GPS antenna placement, antenna fault. | Ensure GPS antenna has a clear view of the sky. Check antenna connection. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | M400S-8Core-4+64G |
| Operating System | Android |
| CPU | 8-Core |
| RAM | 4GB |
| Memory Storage Capacity | 64GB |
| Screen Size | 10 Inches |
| Resolution | 1280 x 720 (IPS) |
| Display Type | OLED |
| Touch Screen Type | Capacitive |
| Connectivity Technology | Wireless (Bluetooth, Wi-Fi, Cellular) |
| Connectivity Protocol | Bluetooth, Cellular, Wi-Fi, Wireless Android Auto, Wireless CarPlay |
| Special Features | Bluetooth, Support Auto AC, Touchscreen, Wired Android Auto, Wireless CarPlay, Built-in DSP, Split Screen, GPS Navigation |
| Supported Satellite Navigation System | GPS |
| Audio Output Mode | Stereo |
| Mounting Type | Dashboard Mount |
| Compatible Vehicle Type | Car (Lexus IS250/IS350 2005-2011) |
| Manufacturer | Shenzhen Mekede Technology Co.,Ltd |
9. Warranty and Support
9.1. Warranty Information
The MekedeTech M400S-8Core-4+64G Android Car Radio comes with a 1-Year Warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by improper installation, misuse, accidents, or unauthorized modifications.
9.2. Customer Support
If you encounter any issues during installation or operation that are not resolved by the troubleshooting section, please contact MekedeTech customer support. Have your product model number (M400S-8Core-4+64G) and purchase details ready when contacting support.
For support, please refer to the contact information provided with your purchase documentation or visit the official MekedeTech website.