1. Introduction
Thank you for choosing the VECHTEL 1 Din Car Stereo. This device integrates advanced features such as a 10.4-inch rotatable touchscreen, wireless CarPlay, Android Auto, Bluetooth connectivity, FM radio, Mirror Link, and support for a rear view camera. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and user satisfaction.
2. Safety Information
- Read all instructions carefully before installation and operation.
- Professional installation is recommended to prevent damage to the unit or vehicle.
- Do not operate the device in a way that distracts you from driving. Always prioritize road safety.
- Ensure all wiring connections are secure and properly insulated to avoid short circuits.
- Keep the unit away from water and excessive moisture.
- Do not attempt to repair the unit yourself. Refer to qualified service personnel.
3. Package Contents
Verify that all items are present in the package:
- 1 x VECHTEL 1 Din Touchscreen Car Stereo
- 1 x Power Cable
- 1 x Horn Cable (Speaker Cable)
- 2 x Mounting Brackets
- 4 x Mounting Screws/Fasteners
- 1 x User Manual
- 1 x External Microphone
- 1 x Rear View Camera

4. Product Overview
The VECHTEL 1 Din Car Stereo features a versatile 10.4-inch touchscreen designed for enhanced in-car entertainment and navigation.
Key Features:
- 10.4-inch Rotatable Touchscreen: High-resolution (1280*800 pixels) IPS display, adjustable for horizontal or vertical viewing.
- Wireless CarPlay & Android Auto: Seamless integration with your smartphone for navigation, calls, messages, and music via voice control (Siri/Google Assistant).
- Bluetooth 4.0: Hands-free calling, phonebook access, and wireless audio streaming.
- Mirror Link: Display your smartphone screen directly on the car stereo for apps and media.
- FM Radio: Access to local radio stations.
- Dual USB Ports: For media playback and device charging.
- Rear View Camera Support: Includes an HD rear camera with 170° wide-angle, night vision, and IP68 waterproof rating for safer reversing.
- 16-Band Audio Equalizer: Customize your audio experience.
- Steering Wheel Control Support: For convenient operation (adapter may be required, not included).


5. Setup and Installation
5.1 Vehicle Compatibility
This car stereo is designed for standard 1 Din installation slots, with dimensions of 176mm (W) x 90mm (D) x 50mm (H). Please measure your dashboard opening to ensure compatibility before installation.
5.2 Wiring Diagram (General Guide)
A detailed wiring diagram is typically included in the physical user manual. Below is a general guide for common connections:
- Power Cable: Connect the yellow wire to constant 12V power, the red wire to accessory 12V power (switched with ignition), and the black wire to ground.
- Speaker Cables: Connect the horn cable (speaker cable) to your vehicle's speakers, ensuring correct polarity.
- Rear View Camera: Connect the camera's video output to the 'CAM IN' port on the stereo. Connect the camera's power to the reverse light circuit and the trigger wire to the stereo's 'REVERSE' input.
- Antenna: Connect your vehicle's FM antenna to the stereo's antenna input.
- USB Ports: Connect USB devices for media playback or charging.
- External Microphone: Plug the microphone into the designated port for improved call quality.
5.3 Physical Installation
- Remove the existing car stereo from your dashboard.
- Connect the wiring harness from the VECHTEL stereo to your vehicle's wiring.
- Secure the main unit into the 1 Din slot using the provided mounting brackets and screws.
- Attach the 10.4-inch display to the main unit. Ensure it is securely fastened.
- Adjust the screen angle and orientation (horizontal/vertical) as desired.
- Test all functions before fully reassembling your dashboard.

6. Operating Instructions
6.1 Basic Operation
- Power On/Off: Press the power button (usually a physical button or a soft button on the screen) to turn the unit on or off.
- Volume Control: Use the volume knob or touchscreen controls to adjust audio levels.
- Home Screen: Tap the home icon to return to the main application interface.
- Screen Adjustment: Physically rotate the screen between horizontal and vertical modes as shown in Figure 5.1.
6.2 Wireless CarPlay & Android Auto
This feature allows seamless integration of your smartphone's functions with the car stereo display.
- Ensure Bluetooth and Wi-Fi are enabled on your smartphone.
- On the car stereo, select the CarPlay or Android Auto application.
- Follow the on-screen prompts to pair your phone via Bluetooth. Once paired, the system will establish a Wi-Fi connection for wireless CarPlay/Android Auto.
- You can now access navigation, make calls, send messages, and play music using the stereo's touchscreen or voice commands (Siri/Google Assistant).

6.3 Bluetooth Connectivity
For hands-free calls and audio streaming without CarPlay/Android Auto.
- Go to the Bluetooth settings on the car stereo.
- Enable Bluetooth on your smartphone and search for available devices.
- Select "VECHTEL" (or similar device name) from the list on your phone and pair.
- Once connected, you can make/receive calls and stream audio.
6.4 Mirror Link
Mirror Link allows you to display your smartphone's screen directly onto the car stereo.
- Connect your smartphone to the car stereo via USB cable or Wi-Fi (if supported by your phone and the stereo's Mirror Link function).
- Select the "Mirror Link" application on the car stereo.
- Follow the on-screen instructions to establish the connection.
- Your phone's screen will now be mirrored on the stereo display.

6.5 FM Radio
To listen to FM radio stations:
- Select the "Radio" application from the main menu.
- Use the touchscreen controls to scan for stations, manually tune, or select preset stations.
6.6 USB Media Playback
Insert a USB drive into one of the USB ports to play audio or video files.
- The system will automatically detect the USB drive and prompt you to select the media player.
- Navigate through folders and files using the touchscreen.
6.7 Rear View Camera
When properly installed, the rear view camera automatically displays the rear view when the vehicle is put into reverse gear.

7. Maintenance
- Screen Cleaning: Use a soft, lint-free cloth to clean the touchscreen. Do not use abrasive cleaners or solvents.
- Software Updates: Periodically check the manufacturer's website for any available software updates to improve performance and add features.
- General Care: Keep the unit free from dust and debris. Avoid extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | Incorrect wiring; Blown fuse; Vehicle battery low. | Check power connections (yellow, red, black wires). Inspect vehicle fuses. Check battery voltage. |
| No sound. | Volume too low; Speaker wires disconnected; Mute function active. | Increase volume. Check speaker connections. Disable mute. |
| CarPlay/Android Auto not connecting. | Bluetooth/Wi-Fi off on phone; Incorrect pairing; Phone software issue. | Ensure phone's Bluetooth/Wi-Fi is on. Re-pair the device. Restart phone and stereo. |
| Rear camera not displaying. | Camera wiring incorrect; Trigger wire not connected; Faulty camera. | Check camera power and video connections. Verify trigger wire connection to reverse light. |
| Touchscreen unresponsive. | System freeze; Dirt on screen. | Restart the unit. Clean the screen. |
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | A3663A3 |
| Screen Size | 10.4 inches |
| Screen Resolution | 1280 x 800 pixels |
| Output Power | 4 x 45W |
| Bluetooth Version | 4.0 |
| Radio Frequency Band | FM |
| Mirror Link Support | Android / iOS |
| USB Ports | Dual USB |
| Reverse Input | AHD and CVBS |
| Supported Audio Formats | APE, FLAC, WAV, MP3, WMA, etc. |
| Supported Video Formats | MKV, RMVB, AVI, MP4, MDV, etc. |
| Installation Dimensions (Main Unit) | 176mm (W) x 90mm (D) x 50mm (H) |
| Screen Dimensions (approx.) | 168mm (W) x 245mm (H) (Portrait) / 245mm (W) x 168mm (H) (Landscape) |
10. Warranty and Support
10.1 Warranty Information
The VECHTEL 1 Din Car Stereo comes with a three-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, accidents, or unauthorized modifications.
10.2 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact VECHTEL customer support. Refer to the contact information provided in your purchase documentation or visit the official VECHTEL website for support options.
When contacting support, please have your product model number (A3663A3) and purchase date ready.