CAIXI Car Radio Multimedia Player User Manual

1. Introduction

Thank you for choosing the CAIXI Car Radio Multimedia Player. This device is designed to enhance your driving experience with advanced features such as Android 12 operating system, wireless Carplay and Android Auto, GPS navigation, Bluetooth connectivity, and various multimedia options. This manual provides essential information for proper installation, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.

Figure 1: CAIXI 8 inch QLED Multimedia Player for Volkswagen

2. Setup and Installation

Before beginning installation, ensure your vehicle's ignition is off and the battery is disconnected to prevent electrical damage.

2.1 Package Contents

Verify that all components are present in your package:

• Main Multimedia Player Unit
• Power Cable
• RCA Input/Output Cables
• Camera Input/Bluetooth Antenna
• FM Antenna
• USB Cable (x1)
• GPS Antenna
• CAN BUS Decoder
• Microphone (Optional)
• 4G SIM Cable (for 4G Version only)
• 4G Antenna (for 4G Version only)

Figure 2: Included Accessories

2.2 Physical Installation

The unit is designed for a 2-DIN slot. Ensure your vehicle's dashboard opening matches the unit's dimensions (220mm width, 130mm height, 210mm depth).

Figure 3: Installation Diagram and Dimensions

Connect the main power cable to your vehicle's wiring harness. Ensure the ISO connector or the specific 'BIG VW' connector is used as appropriate for your vehicle model. Secure the unit into the dashboard using the provided mounting brackets.

2.3 Wiring Connections

Refer to the wiring diagram for detailed connections. Each wire is labeled for its function.

Figure 4: Detailed Wiring Diagram

• Power Cable: Connect to vehicle's power supply.
• RCA Input/Output: For external audio/video devices.
• Camera Input: For rear view camera.
• BT Ant: Bluetooth antenna.
• FM Antenna: For radio reception.
• USB Cable: For USB devices.
• GPS Antenna: For navigation.
• CAN BUS: Connect to vehicle's CAN BUS system for steering wheel controls and other vehicle data.
• MIC (Optional): External microphone for improved call quality.
• 4G SIM Cable & 4G Antenna (4G Version only): For 4G network connectivity.

2.4 Rear View Camera Installation

To install the rear view camera:

1. Mount the camera (C) at the rear of your vehicle.
2. Connect the camera's video cable to the AV display interface (yellow connector) on the multimedia player.
3. Connect the camera's power cable (B) to your vehicle's reversing light (positive) and a ground point (negative).
4. Connect 'Trigger line A' with the display trigger line on the multimedia player.
5. Connect 'Trigger line B' with the back-up light positive wire.

Figure 5: Rear View Camera Connection Diagram

2.5 SIM Card Insertion (4G Version Only)

For 4G network connectivity, insert a compatible SIM card into the designated slot before powering on the device. The unit supports two 4G SIM card slots.

Figure 6: 4G SIM Card Slot

3. Operating Instructions

3.1 Basic Interface and Navigation

The main screen provides access to various applications and functions. Navigate using the touchscreen or physical buttons.

Figure 7: Main Screen Interface

3.2 CarPlay and Android Auto

The unit features built-in wireless Carplay and Android Auto. Connect your iPhone or Android mobile phone to intelligently and safely use navigation, make calls, send/receive messages, and listen to music.

Figure 8: Carplay and Android Auto Interface

3.3 GPS Navigation

The device comes with pre-installed navigation maps and offers free permanent updates. You can also download and install your preferred local navigation apps from the Google Play Store.

Figure 9: GPS Navigation Display

3.4 Bluetooth Connectivity

Connect your mobile phone via Bluetooth for hands-free calling and music streaming. The phonebook function allows for name search and caller ID display for incoming, dialed, and missed calls.

Figure 10: Bluetooth Phonebook Interface

3.5 Steering Wheel Controls

The unit supports most steering wheel control functions, allowing you to easily switch songs, channels, and adjust volume for a safer driving experience. Ensure the CAN BUS decoder is correctly installed for this feature.

Figure 11: Steering Wheel Controls

3.6 Split Screen Function

The split screen function allows you to run two applications simultaneously, such as navigation and music playback. (Note: 4-core 4G SIM versions may not support this feature).

Figure 12: Split Screen Function

3.7 AI Voice Control (Optional)

With the optional AI Voice Car System, you can use voice commands to control various functions like navigation, music playback, and video. This feature requires a separate software activation code purchase.

Figure 13: AI Voice Assistant

3.8 DSP Equalizer Adjustments

The built-in DSP (Digital Sound Processor) allows for precise control over sound frequency, providing a customizable audio experience. Adjust the equalizer settings to optimize sound output for your vehicle's acoustics.

Figure 14: DSP Equalizer Interface

3.9 Advanced Driver-Assistance Systems (ADAS) DVR (Optional)

The optional HD 1080P ADAS DVR can monitor the road ahead. It provides early warning tones if the car is too close to the front vehicle or deviates from the lane, helping to reduce traffic accidents.

Figure 15: ADAS DVR in-car view

3.10 Tire Pressure Monitoring System (TPMS) (Optional)

The optional TPMS real-time displays the pressure and temperature of all four tires. Alarms are triggered if tire pressure or temperature limits are exceeded. TPMS sensors can be built-in (professional installation required) or external (user-installable, battery replaceable).

Figure 16: TPMS Sensor Types

3.11 OBDII Vehicle Health Diagnosis (Optional)

Connect an optional OBDII diagnostic tool to monitor vehicle health in real-time and display diagnostic values. The system has a database of over 3000 code definitions.

Figure 17: OBDII Diagnostic Interface

3.12 DAB+ Tuner (Optional)

With the optional DAB+ radio receiver stick (connected via USB), you can enjoy higher quality sound and a wider range of digital audio broadcasting channels.

Figure 18: DAB+ Tuner Setup

3.13 AV-OUT Support

The unit supports high-definition AV-OUT, allowing you to connect external headrest monitors. This enables passengers to enjoy videos and other multimedia content.

Figure 19: Headrest Display Connection

4. Maintenance

4.1 General Care

• Keep the screen clean using a soft, dry cloth. Avoid abrasive cleaners.
• Do not expose the unit to extreme temperatures or direct sunlight for prolonged periods.
• Ensure all connections are secure to prevent intermittent issues.

4.2 Software Updates

The system firmware is updated periodically to fix bugs and improve performance. Follow the CAIXI official store or contact technical support for information on available updates and how to install them.

4.3 Map Updates

Pre-installed navigation maps are updated annually (typically in July). Contact technical support for download links if needed. You can also update navigation apps directly from the Google Play Store.

5. Troubleshooting

Q: Unit does not power on.

A: Check all power cable connections. Ensure the vehicle's battery is connected and has sufficient charge. Verify the fuse for the radio is intact.

Q: Steering wheel controls are not working.

A: Ensure the CAN BUS decoder is correctly installed and connected. Some vehicle models may require specific configuration in the unit's settings. Refer to your vehicle's manual for CAN BUS compatibility.

Q: Split screen function is not working.

A: The split screen function may not be supported on all versions (e.g., 4-core 4G SIM versions). If your unit supports it, try holding down the relevant button or checking the system settings for activation.

Q: GPS signal is weak or inaccurate.

A: Ensure the GPS antenna is properly installed and has a clear line of sight to the sky (e.g., on the dashboard). Avoid placing it under metal objects.

Q: Bluetooth connection issues.

A: Ensure Bluetooth is enabled on both the multimedia player and your mobile device. Try unpairing and re-pairing the devices. Check for any interference from other wireless devices.

Q: Rear view camera not displaying.

A: Verify all camera wiring, including power, video, and trigger lines. Ensure the camera is receiving power when the vehicle is in reverse gear.

Q: How to set the VW logo on the screen?

A: This setting is typically found within the unit's 'Factory Settings' or 'Car Settings' menu. You may need a password to access these settings (contact technical support if not provided).

6. Specifications

Figure 20: Model Comparison Table

Figure 21: Key Features Summary

7. User Tips

• Vehicle Compatibility: While designed for various VW models, always double-check the specific fitment for your car's year and model. Some users confirm it fits Golf 6, Vento, Polo, and Tiguan well.
• Steering Wheel Controls: If your steering wheel controls aren't working, ensure the CAN BUS decoder is properly connected and configured.
• Sound Quality: For optimal audio, some users recommend experimenting with third-party audio players like JetAudio, in addition to adjusting the built-in DSP equalizer.
• SIM Card: For 4G versions, insert the SIM card before turning on the device to ensure proper detection.
• Customization: The unit often allows setting a custom boot logo (e.g., VW logo) through the factory settings.
• Technical Support: If you encounter issues or need assistance with updates, refer to the warranty card for technical support contact information or send a message via the AliExpress system.

8. Support

For any technical assistance, questions, or concerns regarding your CAIXI Car Radio Multimedia Player, please refer to the contact information provided on your warranty card. You may also send a message through the AliExpress platform, and our support team aims to respond within 24 hours, accounting for time zone differences. Our commitment is to provide lifelong service and continuous improvement.