CHSTEK Car Radio 8" Android 13 Carplay Multimedia System User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your CHSTEK 8-inch Android 13 Car Radio multimedia system. This unit is specifically designed for Volvo XC70, V70, S60, S40, and V40 models manufactured between 2005 and 2009. It features an Android 13 operating system, built-in Wireless CarPlay and Wired Android Auto, 4G and WiFi connectivity, advanced DSP sound processing, and support for various camera systems.

Please Note:

• This model does not have a built-in DVD/CD player or SD card slot. Media playback is primarily via USB or streaming.
• The 8-inch touch screen features a 1280*720P resolution.
• 4G network functionality is not supported in the Americas (e.g., United States, Canada, Mexico, Brazil) or in Japan and South Korea due to different carriers and network baseband.

2. Safety Information

• Always ensure your vehicle is parked safely before operating the multimedia system.
• Do not attempt to disassemble or repair the unit yourself. Refer to qualified professionals for service.
• Ensure proper wiring and voltage connections during installation to prevent damage to the unit or vehicle.
• Avoid prolonged exposure to direct sunlight or extreme temperatures.

3. Product Overview

The CHSTEK Car Radio is an advanced in-car entertainment and navigation system designed to seamlessly integrate with your Volvo. It offers a variety of features to enhance your driving experience.

Key Features:

• Operating System: Android 13
• Processor: Octa-Core (specifics vary by version, up to 6* ARM Cortex-A55 @ 1.8GHz + 2* ARM Cortex-A75 @ 2.0GHz)
• Memory: Up to 12GB RAM + 256GB ROM (varies by version)
• Display: 8-inch Touch Screen, 1280*720P Resolution
• Connectivity: Built-in WiFi, 4G LTE SIM support (region-dependent), Bluetooth 5.0
• Smartphone Integration: Built-in Wireless CarPlay and Wired Android Auto
• Audio: DSP Sound System with EQ settings, Bass Enhancement, Bass Filter, 3D Surround Sound
• Navigation: Built-in GPS+GLONASS
• Camera Support: Backup Camera, AHD 1080P Input, Front Parking Camera, ADAS DVR Camera, 360° Panorama System (optional hardware required)
• Additional Features: Steering Wheel Control, Split Screen Function, Colorful Light Buttons, Radio with RDS, OBD2 Function (for vehicle data retrieval), HDMI/AV-Out.

Figure 3.1: Front view of the CHSTEK Car Radio unit.

Figure 3.2: Overview of various functions and optimized configuration.

4. Installation

Professional installation is highly recommended. Incorrect installation can damage the unit or your vehicle's electrical system. Always disconnect the vehicle's battery before starting installation.

4.1 Pre-Installation Check

• Verify all components are present in the package.
• Ensure the vehicle's ignition is off and the battery is disconnected.
• Familiarize yourself with your vehicle's dashboard and existing wiring.

4.2 Wiring Diagram

Refer to the detailed wiring diagram below for proper connections. This diagram illustrates connections for power, speakers, camera inputs, USB, GPS, and 4G antennas. Specific wiring may vary slightly depending on your vehicle's original configuration and the specific version of your CHSTEK unit.

Figure 4.1: Example of Wiring Diagram for various models.

4.3 Installation Steps (General)

1. Carefully remove the original car radio unit from your Volvo dashboard.
2. Connect the main power harness, speaker wires, and other necessary cables from the vehicle to the CHSTEK unit according to the wiring diagram.
3. Connect the GPS antenna, 4G antenna (if applicable), and any camera inputs.
4. If your vehicle requires them, connect the provided antenna adapter and amplifier adapter.
5. Carefully slide the CHSTEK unit into the dashboard opening.
6. Reconnect the vehicle's battery and test the unit's functionality before fully securing it.
7. Secure the unit in place and reassemble the dashboard trim.

Figure 4.2: Included Antenna and Amplifier Adapters.

4.4 Before and After Installation Visuals

Figure 4.3: Dashboard appearance before and after installation.

5. Operation

Your CHSTEK Car Radio offers a rich set of features accessible through its touch screen interface and physical buttons.

5.1 Basic Navigation and Interface

The unit runs on Android 13, providing a familiar smartphone-like interface. Swipe left/right to navigate between home screens, tap icons to open applications. Physical buttons on the unit provide quick access to Menu, Navigation, Band, EQ, Mode, and Bluetooth functions.

5.2 Wireless CarPlay and Wired Android Auto

Connect your iPhone or Android device to mirror a simplified version of your phone screen onto the car radio. This allows for easy access to navigation, calls, messages, and music.

• CarPlay: A smarter, safer way to use your iPhone while driving. Get directions, make calls, send/receive messages, and enjoy music.
• Android Auto: Mirrors features from an Android device, including GPS mapping/navigation, music playback, SMS, telephone, and web search.

Figure 5.1: Wireless CarPlay interface.

Figure 5.2: Wired Android Auto interface.

5.3 Navigation (GPS+GLONASS)

The unit comes with built-in GPS and GLONASS for accurate navigation. You can use pre-installed maps or download your preferred navigation apps from the Google Play Store (requires internet connection).

5.4 Bluetooth 5.0

Bluetooth 5.0 offers faster transfer speeds, wider coverage, and enhanced anti-interference. Connect your phone for:

• Hands-free Calling: Make and receive calls without noise while driving.
• Bluetooth Music Streaming: Stream audio from your phone with high fidelity quality.
• Phonebook Sync: Download and query your phone contacts.

Figure 5.3: Bluetooth interface for calls and music.

5.5 DSP Sound System

Enhance your audio experience with the Digital Sound Processor (DSP).

• EQ Settings: Adjust treble, midrange, and bass for a richer sound.
• Position Adjustment: Optimize sound output time to achieve a perfect sound effect, making the sound arrive synchronously at the driving position.
• 3D Surround Sound: Adjust sound speed from individual speakers to create an immersive audio experience.
• Bass Enhancement: Boost bass for more powerful and flexible low frequencies.
• Bass Filter: Filter out bass to make middle and high tones more delicate and full.

Figure 5.4: DSP Sound System features and benefits.

5.6 Radio Function

The unit supports automatic and manual radio station search. It includes an RDS function for European users, automatically selecting stable frequencies.

Figure 5.5: Radio function interface.

5.7 Steering Wheel Control

The unit is compatible with most steering wheel control functions, allowing you to easily switch songs, channels, and adjust volume, minimizing distractions while driving.

Figure 5.6: Steering Wheel Control in use.

5.8 Split Screen Function

Utilize the split screen feature to run two applications simultaneously, such as navigation and music playback. Note that some third-party apps may not fully support split-screen functionality if conflicts arise.

Figure 5.7: Split Screen functionality.

5.9 Camera Support

The system supports various camera inputs to enhance safety and convenience:

• Rear View Camera: Automatically switches to the reverse screen with parking lines when reversing.
• Front ADAS DVR: Advanced Driving Assistance System (optional) with 1080P live display and recording for safer driving.
• 360° Panorama System: (Requires optional hardware) Uses 4x220° ultra-wide-angle cameras to synthesize a seamless 360° aerial view, eliminating blind spots.

Figure 5.8: Camera support features.

Important Note on 360° Panorama Function:

The 360° panorama function requires specific hardware support from the factory. If you did not purchase the unit with the 360 chip hardware option, this function will not be available.

5.10 Customizable Button Lights

The unit features built-in colorful light hardware for the physical buttons. You can choose and customize your preferred button light color.

Figure 5.9: Customizable button light colors.

6. Maintenance

• Cleaning the Screen: Use a soft, lint-free cloth to gently wipe the touch screen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid harsh chemicals.
• General Cleaning: Keep the unit free from dust and debris. Use a soft brush or compressed air to clean around buttons and vents.
• Software Updates: Periodically check for software updates to ensure optimal performance and access to new features. Updates can usually be found in the system settings or on the manufacturer's website.
• Avoid Liquids: Do not expose the unit to liquids. In case of accidental spills, immediately power off the unit and dry it thoroughly before attempting to use it again.

7. Troubleshooting

Here are some common issues and their potential solutions:

8. Specifications

The following table outlines the general specifications for the CHSTEK Car Radio multimedia system. Please note that specific values for CPU, RAM, ROM, and DSP may vary depending on the purchased version (e.g., FY818, FY8581, FY7862, MTK8667, Qualcomm 6125, FY7870).

Figure 8.1: Product Parameters for different versions.

9. User Tips

• For optimal sound quality, experiment with the DSP settings, especially the position adjustment, to tailor the audio to your driving position.
• If you experience slow performance, try closing unused applications or clearing the cache in the Android settings.
• Always use high-quality USB cables for CarPlay/Android Auto to ensure stable connection and performance.

10. Warranty and Support

10.1 Warranty Information

All CHSTEK car radio units come with a 12-month manufacturer warranty. This warranty covers defects in materials and workmanship under normal use. The warranty does not cover damage resulting from:

• Improper installation or operation.
• Accidents, misuse, or abuse.
• Improper wiring or incorrect voltage operation.
• Neglect or unauthorized disassembly/repair.
• Damage caused by improper packaging during return.

Customers are responsible for return shipping fees for warranty claims. Please provide a clear picture or video as proof when reporting an issue.

10.2 Technical Support

For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact CHSTEK customer support. It is recommended to seek professional assistance for installation to avoid issues that may void your warranty.