1. Introduction
Thank you for choosing the KUNFINE Diamond 2K Android Car Radio. This multimedia player is designed to enhance your in-car entertainment and navigation experience with its high-resolution display, advanced features, and user-friendly interface. This manual provides essential information for the proper installation, operation, and maintenance of your device.

Figure 1: KUNFINE Diamond 2K Android Car Radio models
2. Package Contents
Please check the package carefully to ensure all items are present:
- Main Head Unit (10.1, 10.33, 11.5, or 11.8 inch model)
- Power Cable
- USB Cables (2x)
- GPS Antenna
- Camera Input Cable
- Quad Core Harness OR Octa Core Harness (depending on model)
- 4G Antenna (for models with 4G support)

Figure 2: Included Package Contents
3. Specifications
| Feature | Specification |
|---|---|
| Display Size | 10.1 / 10.33 / 11.5 / 11.8 inch (varies by model) |
| Resolution | Up to 2000x1200 (2K QLED for 11.8" models) |
| Operating System | Android |
| RAM | 2G / 4G / 6G / 8G (varies by model) |
| ROM | 32G / 64G / 128G / 256G (varies by model) |
| Din Type | Double Din |
| Out Power | 4*45W |
| Voltage | 12 V |
| Item Weight | 1.9kg |
| Interface | USB |
| Max External Memory | 256G |
| Special Features | WiFi function, Support 4G Network, Split Screen, Reversing Input, Mobile Phone, Built-In Speaker/Microphone, Support steering wheel control, DSP, CarPlay, Built-in GPS, Android Auto, Built-in Screen, Touch Screen |
| Digital Media Format | MP3, MP4, WMA, JPEG |
| OSD Language | Multi-language support including English, Arabic, Chinese, French, German, Italian, Japanese, Korean, Portuguese, Russian, Spanish, etc. |
| Certifications | FCC, CE |
| Material | Plastic |
| Built-in DVD/CD Player | No |
| TF/Micro SD Slot | 0 |

Figure 3: Product Certifications
4. Setup Instructions
The KUNFINE Diamond 2K Android Car Radio is a universal double-din unit. Installation may vary depending on your specific vehicle model. Professional installation is recommended.
4.1 Pre-Installation Check
- Ensure your vehicle's power is off before beginning installation.
- Verify that you have all necessary components as listed in Section 2.
- For specific vehicle models, you may need an additional fascia frame and wiring harness adapter (not included) to ensure a perfect fit and compatibility with your car's existing systems.
4.2 Basic Wiring Connections
Refer to the wiring diagram provided with your unit and the general connection points below:
- Power Cable: Connect the main power harness to your vehicle's power supply. Ensure correct positive and negative connections.
- USB Cables: Connect the provided USB cables for external storage, phone charging, or data transfer.
- GPS Antenna: Mount the GPS antenna in a location with a clear view of the sky for optimal signal reception.
- Camera Input Cable: If installing a rear camera, connect its video output to the camera input cable on the head unit.
- 4G Antenna: If your model supports 4G, connect the 4G antenna for network connectivity.

Figure 4: Screen Dimensions and Main Wiring Connections
4.3 Mounting the Head Unit
- Carefully slide the head unit into the double-din slot in your dashboard.
- Secure the unit using the mounting brackets and screws provided, ensuring it is firmly in place.
- Reconnect your vehicle's power.

Figure 5: Installation Effect
5. Operating Instructions
Your KUNFINE Android Car Radio features an intuitive Android interface. Here's how to get started with its key functions:
5.1 Power On/Off and Basic Navigation
- Press the power button (usually one of the knobs) to turn the unit on or off.
- Navigate the interface using the touchscreen or the physical knobs.
- The home screen provides quick access to frequently used applications.
Video 1: Product demonstration showing UI interaction, volume control, track skipping, app navigation, and radio tuning.
5.2 Knob Control
The dual rotary knobs provide quick and blind operation for essential functions:
- Left Knob: Typically controls volume. Rotate to adjust, press to mute/unmute.
- Right Knob: Often used for track skipping (rotate) or play/pause (press).

Figure 6: Manual Knob Design for Easy Control
5.3 Wireless CarPlay & Android Auto
Connect your smartphone wirelessly for seamless integration:
- For iPhone (CarPlay): Built-in CarPlay supports iOS systems. Connect your iPhone to access navigation, music, messages, and more.
- For Android (Android Auto): Built-in Android Auto connects with Android mobile phones for similar functionalities.

Figure 7: Wireless CarPlay & Android Auto Interface
5.4 GPS Navigation
The unit features built-in GPS for accurate navigation. Ensure the GPS antenna is properly installed for optimal performance. Real-time road conditions can help avoid traffic jams.

Figure 8: GPS Navigation in Use
5.5 Bluetooth (BT 4.0)
Connect your phone via Bluetooth for hands-free calling and audio streaming. This feature significantly reduces driving risks by allowing you to manage calls and music without touching your phone.

Figure 9: Bluetooth 4.0 Functionality
5.6 Dual Screen Display & Split Screen
The unit supports dual screen display, allowing different functions to be operated simultaneously. Utilize the split-screen feature to view navigation and music playback side-by-side.

Figure 10: Dual Screen Display
5.7 Equalizer Adjustment (DSP)
The built-in DSP technology allows for equalizer adjustments, offering a variety of surround sound field modes. Customize strong bass, soft midrange, and bright treble for a transparent stereo sound experience.

Figure 11: Equalizer Adjustment Interface
5.8 Steering Wheel Control
With steering wheel control support, you can easily switch songs, change channels, and adjust volume directly from your steering wheel, contributing to a safer and more enjoyable drive.

Figure 12: Steering Wheel Control Settings
5.9 AHD Reversing Video
The unit supports AHD reversing video input. Connecting a rear camera (sold separately) makes your driving safer by providing a clear view of the area behind your vehicle, reducing unexpected trouble during parking or reversing.

Figure 13: AHD Reversing Video
5.10 Optional 360 Module
For an enhanced panoramic view, an optional 360 module is available. This module connects to the motherboard and provides a comprehensive 360-degree view around your vehicle. Please note that this module is sold separately.

Figure 14: 360 Module Connection
6. Maintenance
6.1 Cleaning the Screen
- Use a soft, lint-free cloth to gently wipe the screen.
- For stubborn smudges, slightly dampen the cloth with water or a screen-cleaning solution. Avoid harsh chemicals or abrasive materials.
6.2 General Care
- Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods.
- Keep the unit free from dust and debris.
- Do not attempt to open the unit or perform repairs yourself, as this will void the warranty.
7. Troubleshooting
If you encounter issues with your KUNFINE Diamond 2K Android Car Radio, refer to the following common problems and solutions:
- No Power: Check all power connections. Ensure the vehicle's ignition is on. Verify the fuse in the power cable.
- No Sound: Check volume levels on the unit and your vehicle's amplifier (if applicable). Ensure speakers are properly connected. Verify audio output settings.
- GPS Signal Lost/Weak: Ensure the GPS antenna is securely connected and mounted in a location with a clear view of the sky. Move away from tall buildings or dense foliage.
- Bluetooth Connection Issues: Ensure Bluetooth is enabled on both the car radio and your smartphone. Delete previous pairings and try reconnecting.
- CarPlay/Android Auto Not Connecting: Ensure your phone's operating system is up to date. Check USB cable connection if using wired CarPlay/Android Auto. For wireless, ensure Wi-Fi and Bluetooth are enabled on your phone.
- Touchscreen Unresponsive: Try restarting the unit. If the issue persists, a factory reset might be necessary (note: this will erase all user data).
- Slow Performance: Close unnecessary background applications. Consider a model with higher RAM for smoother performance if you frequently use multiple demanding apps.
8. User Tips
- Vehicle Compatibility: While this unit is universal, specific vehicle models (e.g., Ford F150 2008, Toyota Sienna XLE 2014, Skoda Octavia MK2 2010, Opel Mokka 2018, Toyota Corolla 2016, Toyota Auris, Lancia Delta 3 2009, Fiat Ducato X250, Discovery Sport 2017, Jimny, Fiat Bravo 2013, Spacecross VW 20012, Toyota Land Cruiser 2003) may require a custom fascia frame and/or a vehicle-specific wiring harness adapter for a perfect fit and full functionality. Always measure your dashboard opening and consult with a professional installer if unsure.
- 4G Connectivity: For models supporting 4G, ensure you have a compatible SIM card and a data plan for internet access on the go.
- Steering Wheel Controls: The unit supports steering wheel controls. If they don't work automatically after installation, check the unit's settings for a 'Steering Learn' or 'SWC' configuration option.
- Audio Customization: Utilize the DSP equalizer to fine-tune your audio experience. While not explicitly listed, advanced audio units with DSP often support subwoofer output control.
- Rear Camera: A rear camera is highly recommended for safety, though it is typically sold separately. Ensure it is compatible with AHD video input.
9. Warranty and Support
9.1 Warranty Information
This KUNFINE Diamond 2K Android Car Radio comes with a 1-year warranty from the date of purchase. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by improper installation, misuse, accidents, unauthorized repairs, or normal wear and tear.
9.2 Technical Support
For technical assistance, troubleshooting, or warranty claims, please contact your retailer or the KUNFINE customer support team. Have your purchase receipt and product model information ready when contacting support.





