1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your MekedeTech DUDUAUTO DUDU7 Car Multimedia Head Unit Player. This unit features a 9.5-inch 2000x1200 QLED IPS touch screen, Android 13 operating system, 6GB RAM, and 64GB ROM. It is designed for Subaru Outback and Legacy models from 2015 to 2018. Please read this manual thoroughly before installation and use to ensure proper functionality and safety.
2. Package Contents
Verify that all items listed below are included in your package:
- Main Head Unit (Machine)
- Power Cable
- Microphone (MIC)
- RCA Cable
- Reversing Camera Cable
- USB Plug x3
- Fakra 4G Antenna
- Fakra GPS Antenna (For DUDU7 only)

Figure 2.1: Contents of the DUDUAUTO DUDU7 package. Please ensure all listed components are present before proceeding with installation.
3. Setup Instructions
Careful installation is crucial for optimal performance. If your car has a Harmon Sound System, an additional power cable with CANBUS is required (ASIN B0CTJRJVMQ).
3.1 Wiring and Connections
Follow these steps to connect the head unit:
- GPS Antenna: Insert the GPS antenna and tighten the screws. Tear off the paper and stick the GPS antenna under the front windshield for optimal signal reception.
- Camera Input Cable: Insert the camera input cable into the designated port on the head unit.
- USB Cables: Insert the 6-pin USB cable and the 4-pin USB harness into their respective ports.
- RCA Cable: Insert the RCA cable into the head unit.
- CANBUS Box: Connect the main wiring harness into the CANBUS box. Then, plug the 8-pin CANBUS plug into the port on the head unit.
- Power Cord: Plug the power cord into the port on the head unit.
- Radio Adapter Cable: Insert the radio adapter cable.
- AUX Jack (if applicable): If your original car has an AUX jack, connect the AUX L/R from your car to the AUX IN L/R in the RCA harness.
- OEM Camera (if applicable): If your vehicle has an OEM camera, select one of the four provided adapters that matches your car's port. Connect the yellow video signal cable from the chosen adapter to the "Camera Input" line.
Video 3.1: Detailed wiring tutorial for the car stereo in Subaru Outback/Legacy 2015-2018 models. This video demonstrates the connection of various cables including GPS antenna, camera input, USB, RCA, CANBUS, and power.

Figure 3.1: Visual comparison of the dashboard before and after installing the MekedeTech DUDUAUTO DUDU7 head unit, demonstrating seamless integration.
4. Operating Instructions
Your DUDUAUTO DUDU7 head unit offers a range of features for an enhanced driving experience.
4.1 Key Features
- Wireless & Wired CarPlay/Android Auto: Seamlessly integrate your smartphone for navigation, calls, messages, and music without needing a cable for wireless connection.
- Qualcomm 3031 Bluetooth 5.0: Experience low power consumption, faster transmission, and stable signal for calls and music streaming with aptX HD protocol support.
- Dual Band GPS (L1+L5): Built-in 6-mode positioning chip supports L1+L5 joint positioning for increased speed and accuracy, enabling lane-level navigation.
- Digital Noise Cancelling Mic: Ensures clear voice transmission by reducing ambient noise, even at high speeds.
- AKM7739 DSP Velvet Audio Technology: Supports DTS 5.1 panoramic sound and sound correction for a natural, comfortable, and immersive audio experience.
Video 4.1: Demonstration of the car stereo system display, showcasing various interface elements and functionalities such as navigation, media playback, and application access.

Figure 4.1: Overview of the DUDU OS 3.0 interface, highlighting customizable dynamic wallpapers and different display modes for day and night driving.

Figure 4.2: Explanatory diagram of the Dual Band GPS (L1+L5) for enhanced positioning accuracy and the Digital Noise Cancelling Microphone for improved call clarity.

Figure 4.3: Detailed view of the AKM7739 DSP Velvet Audio Technology, highlighting its role in delivering rich and immersive sound quality.
5. Maintenance
To ensure the longevity and optimal performance of your head unit, follow these maintenance guidelines:
- Screen Cleaning: Use a soft, lint-free cloth slightly dampened with water or a screen cleaner specifically designed for electronics. Avoid harsh chemicals or abrasive materials.
- Dust Removal: Regularly wipe down the unit and surrounding areas to prevent dust buildup, which can affect performance and cooling.
- Software Updates: Periodically check for and install software updates to ensure you have the latest features and bug fixes. Refer to the device settings for update options.
- Avoid Extreme Temperatures: Do not expose the unit to extreme heat or cold for extended periods, as this can damage internal components.
6. Troubleshooting
If you encounter issues with your head unit, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | Incorrect wiring, blown fuse, power supply issue. | Check all power connections. Verify vehicle fuse. Ensure proper grounding. |
| No sound output | Incorrect speaker wiring, volume too low, Harmon Sound System not properly connected. | Check speaker connections. Increase volume. If applicable, ensure Harmon Sound System CANBUS cable is installed. |
| GPS signal loss or inaccuracy | GPS antenna not properly installed or obstructed. | Ensure GPS antenna is securely connected and placed in an unobstructed location (e.g., under the front windshield). |
| CarPlay/Android Auto not connecting | Incorrect USB cable, Bluetooth not paired, phone settings. | Use a high-quality USB cable. Ensure Bluetooth is enabled and paired. Check phone settings for CarPlay/Android Auto permissions. |
| Rear camera not displaying | Incorrect camera wiring, camera power issue, OEM camera adapter mismatch. | Verify camera input cable connection. Ensure camera receives power. Check if the correct OEM camera adapter is used. |
7. Specifications
Detailed technical specifications for the MekedeTech DUDUAUTO DUDU7 head unit:
| Feature | Description |
|---|---|
| Item Model Number | DUDU7 |
| Display Size | 9.5 inches |
| Display Resolution | 2000x1200 |
| Operating System | Android 13 |
| CPU | 8 Core UIS7870 Customized version A76 2.7Ghz 6nm processor |
| Memory Type | UFS 3.1 Read data 1700M+ |
| RAM/ROM | 6GB RAM, 64GB ROM |
| GPS | Dual Band 6 mode L1 L5 B1 B2a E1 E5a |
| Microphone | Digital Noise Cancellation Microphone |
| USB | USB 3.2 GEN1*1 (TYPE-C), USB 2.0*3 |
| Power Amplifier | TDA7808 Digital AB type |
| DSP | AKM7739 Velvet Audio Technology |
| Bluetooth Chip | Qualcomm 3031 (Supports aptX HD protocol, BT5.0) |
| Audio Output | Optical + Coaxial, RCA 5.1 Channel Outputs |
| WiFi Type | 802.11a/b/g/n/ac (Support 5G WIFI) |
| Work Voltage | 9V~16V |
| CarPlay & Android Auto | Support Wired and Wireless CarPlay and Android Auto |
| 360 Panorama | Support 360 panoramic image system (requires additional 360 chip) |
| Vehicle Service Type | Car |
| Connectivity Technology | Wireless |
| Map Type | Worldwide |
| Voice Command | Buttons, Keyboard, Microphone, Touchscreen |

Figure 7.1: Comparison table of DUDU6 and DUDU7 models, detailing their respective specifications and available screen sizes.
8. Warranty Information
The MekedeTech DUDUAUTO DUDU7 head unit comes with a 1-Year Warranty from the date of purchase, covering manufacturing defects. For additional protection, extended protection plans are available:
- 2-Year Protection Plan: Extends coverage for 24 months.
- 3-Year Protection Plan: Extends coverage for 36 months.
- Complete Protect: A monthly plan covering eligible past and future purchases.
Please retain your proof of purchase for warranty claims. The return policy allows for refunds or replacements within 30 days of purchase.
9. Customer Support
For further assistance, technical support, or warranty inquiries, please contact MekedeTech customer service through the retailer where the product was purchased. You may also visit the official MekedeTech store for additional resources and contact information.
MekedeTech Store: Visit Store