CHSTEK Car Radio 7870 Instruction Manual

1. Introduction

The CHSTEK Car Radio 7870 is an advanced in-car multimedia and navigation system designed to enhance your driving experience. Featuring the Android 13 operating system, it offers a wide range of functionalities including Wireless CarPlay, Wired Android Auto, GPS navigation, 4G/WiFi connectivity, and a powerful DSP sound system. This manual provides essential information for installation, operation, maintenance, and troubleshooting.

1.1. Vehicle Compatibility

This unit is compatible with various car models. Please verify your vehicle's dashboard dimensions against the product specifications before installation.

• For VW: BORA (MK3,4) (1998-2006), POLO (MK3,4) (1999-2008), PASSAT B5 (MK5) (2001-2005), SHARAN (1998-2009), JETTA (1998-2005), GOLF 4 (MK4) (1997-2003), CITI CHICO (2004-2009), LUPO (1997-2005), T5 MULTIVAN (Startline), TRANSPORTER (T4/T5) (1998-2009)
• For SEAT: ALHAMBRA (1996-2008), CORDOBA 6L (2002-2008), IBIZA 6L (2002-2008), LEON 1M (1999-2005), TOLEDO 1M (1999-2004)
• For SKODA: SUPERB (before 2008)
• For PEUGEOT: 307 (Front Panel: 117mm high*189mm wide)
• For FORD: GALAXY (Front Panel: 117mm high*189mm wide)

2. Important Notes

• This model does not have a built-in DVD/CD reader and does not support DVD/CD discs.
• This model does not have a built-in SD Card Slot; external media can be connected via USB cable.
• The unit features a 7-inch touch screen with a resolution of 1024*600P.
• The front panel size is 188mm wide x 117mm high. Please measure your car's dashboard to ensure compatibility before ordering.
• If you are in the Americas (e.g., United States, Canada, Mexico, Brazil) and require 4G network functionality, please inform customer service to ensure proper configuration.
• 4G SIM card network function is not supported in Japan and South Korea due to different carriers and network baseband.
• The 360-degree panorama function requires specific hardware support from the factory. If the 360 chip hardware option is not purchased, this function will not be available.

3. Specifications

The CHSTEK Car Radio 7870 comes with the following key specifications:

4. Package Contents

The following accessories are typically included with your CHSTEK Car Radio 7870:

• USB Cable (4-pin)
• USB Cable (6-pin)
• GPS Antenna
• Harness Wire
• Rear View Camera Input / WiFi / Bluetooth Antenna
• Microphone Cable
• 4G Antenna (for models with 4G support)
• RCA Cable
• RCA Cable + MIC Port + 4G SIM Card Slot (for models with 4G support)

5. Setup and Installation

Professional installation is highly recommended to ensure correct wiring and functionality. Always test the unit before fully securing it in the dashboard.

5.1. Physical Installation

Ensure your car's dashboard opening matches the unit's dimensions (188mm wide x 117mm high). Carefully remove the existing car radio and prepare the wiring harness.

5.2. Wiring Diagram

Refer to the detailed wiring diagram for connecting the ISO harness, CANBUS, audio/video inputs/outputs, USB ports, GPS antenna, and 4G SIM slot (if applicable). Ensure all connections are secure and correctly matched to avoid damage or malfunction.

6. Operating Instructions

6.1. User Interface (UI)

The unit features a customizable user interface with various themes and layouts. You can navigate through apps and settings using the touch screen. The panel light colors can also be customized to match your vehicle's interior or personal preference.

6.2. Wireless CarPlay

Connect your iPhone wirelessly to access CarPlay features. CarPlay provides a smart and safe way to use your iPhone while driving, allowing you to get directions, make calls, send messages, and enjoy music directly from the car's display.

6.3. Wired Android Auto

Connect your Android device via USB to use Wired Android Auto. This feature mirrors your Android phone's interface to the car radio, supporting GPS mapping, music playback, SMS, telephone, and web search applications.

6.4. Radio Function

The unit supports automatic and manual radio station search. It includes an RDS (Radio Data System) function, especially useful for European users, to automatically select stable frequencies.

6.5. Bluetooth 5.0

Utilize Bluetooth 5.0 for faster transfer speeds and enhanced anti-interference. Pair your phone to stream music, make hands-free calls, and synchronize your phonebook. Both built-in and external microphones are supported for clear communication.

6.6. DSP Sound System

The built-in Digital Sound Processor (DSP) allows for precise audio customization. Adjust EQ settings to achieve smoother treble, richer midrange, and fuller bass. Features include:

• 3D Surround Sound: Adjusts sound output time from speakers to create an immersive audio experience, making it feel like you are in the music scene.
• Bass Enhancement: Boosts bass frequencies for a more powerful and flexible low-end.
• Bass Filter: Filters out bass frequencies to make middle and high tones more delicate and full.

6.7. Steering Wheel Control

The unit is compatible with most steering wheel control functions, allowing you to easily switch songs, channels, and adjust volume without taking your hands off the wheel, minimizing distractions and enhancing safety.

6.8. Split Screen Function

The split screen feature allows two functions to run and display simultaneously on the screen, such as navigation and music playback. Note that some third-party applications may not fully support this feature if their functionalities conflict.

7. Advanced Features

7.1. Camera Support

• Reverse Camera: Automatically switches to the reverse screen with parking lines when backing up, ensuring safety.
• Front ADAS DVR: Supports advanced driving assistance systems with 1080P live display and recording, helping to keep your driving safer.
• 360° Panoramic System: (Optional hardware required) Utilizes 4x220° ultra-wide-angle cameras to capture a seamless 360-degree aerial view, eliminating dangerous blind spots.

7.2. TPMS (Tire Pressure Monitoring System)

With the optional OBD2 function, you can retrieve real-time data and trouble codes from your vehicle's computer, including tire pressure information, presented in an easy-to-read format.

7.3. HDMI/AV-Out

The HDMI/AV-Out port allows you to connect the unit to an external monitor or other devices, enabling you to share high-definition video and high-quality audio with all passengers in your vehicle.

8. User Tips

• Always double-check your car's dashboard dimensions against the product's front panel size (188mm wide x 117mm high) to ensure a proper fit before purchasing.
• If you reside in the Americas (e.g., USA, Canada, Mexico, Brazil) and intend to use the 4G SIM card network function, please contact customer service to confirm compatibility and necessary configurations.
• Be aware that the 4G SIM card network function is not supported in Japan and South Korea due to regional network differences.
• For the 360-degree panorama camera feature, ensure you have purchased the specific hardware option, as it is required for this functionality.

9. Troubleshooting

If you encounter any issues during installation or operation, it is recommended to consult a professional installer. They can test the product thoroughly before final installation and address any wiring or compatibility concerns. If problems persist, please contact customer support with a detailed description of the issue, including pictures or videos if possible.

10. Maintenance

To ensure the longevity and optimal performance of your car radio, keep the screen and unit clean using a soft, dry cloth. Avoid using harsh chemicals or abrasive materials that could damage the display or casing. Ensure all connections remain secure.

11. Warranty and Support

11.1. Manufacturer Warranty

All CHSTEK products come with a 12-month manufacturer warranty, ensuring proper functioning under normal use. This warranty does not cover damages resulting from:

• Improper installation or operation.
• Accidents, misuse, or abuse.
• Improper wiring or incorrect voltage operation.
• Neglect or unauthorized disassembly/repair.

Items returned without a proper report or proof of issue will not be processed. The customer is responsible for return shipping fees.

11.2. Customer Support

For any inquiries, technical assistance, or warranty claims, please contact CHSTEK customer support. Providing clear descriptions, pictures, or videos of any issues will help expedite the support process.

12. Product Demonstration Video

Watch this video for a visual guide on the unit's UI features, panel light customization, and CarPlay/Android Auto functionality.