CHSTEK Android Car Stereo Instruction Manual

Important Notes

• If your original car has an amplifier and the specific cable shown in the pictures, or if an amplifier is located under your passenger's seat, an additional adapter may be required. Please consult the wiring diagrams and contact customer service if unsure.
• This model does not include a built-in DVD/CD reader and does not support DVD/CD disc functions.
• This model does not have a built-in SD Card Slot. External media can be connected via USB cables.
• The display size and resolution vary by version: 8-inch Touch Screen with 1280*720P or 7-inch Touch Screen with 1024*600P.
• For customers in the Americas (e.g., United States, Canada, Mexico, Brazil), Japan, and South Korea: The 4G SIM card network function may not be supported due to different carriers and network basebands. Please inform customer service if you require 4G network functionality in these regions.
• The 360 panoramic function requires specific hardware support from the factory. If the 360 chip hardware option is not purchased, the screen will not support this function.

Package Contents

The standard package includes the following components:

• Main Unit / Fascias Frame
• 16PIN Harness + CANBUS (Note: Not all models have CANBUS)
• 4PIN USB1 / 6PIN USB1 (USB3 is optional)
• GPS Antenna
• 10PIN CAM IN
• External Microphone (connects to 20PIN)
• 20PIN RCA + 4G SIM
• 4G Antenna
• User Manual

Setup and Installation

This car stereo system is designed for a plug-and-play installation, minimizing the need to cut wires in your vehicle. Connect the specific connectors directly.

Wiring Diagrams

Refer to the following diagrams for proper connection of your car stereo system. Ensure all connections are secure before powering on the device.

ISO Wiring Harness (16-Pin)

• 1: GND (Black)
• 2: B+ (Yellow)
• 3: ACC (Red)
• 4: ILL (Small Lights Detecting)
• 5: REVERSE
• 6: KEY2
• 7: KEY1
• 8: ANT (Power)
• 9: FR- (Grey/Black)
• 10: RL- (Green/Black)
• 11: FR+ (Grey)
• 12: RL+ (Green)
• 13: FL- (White/Black)
• 14: RR+ (Purple)
• 15: FL+ (White)
• 16: RR- (Purple/Black)

RX TX Canbus Protocol (8-Pin)

• 1: CAN-RX (External Protocol)
• 2: CAN-TX (External Protocol)
• 3: NC
• 4: Key-Reset
• 5: Aux Out R (Rear Right)
• 6: Aux Out L (Rear Left)
• 7: 12V Power
• 8: GND

General Wiring Diagram (FY818 Model)

• 1. ISO Wiring Harness/CANBUS - 16P
• 2. RX TX CAN bus Port for Harness CAN Port - 8P
• 3. Amplifier Control
• 4. Right Sounds Channel Out
• 5. Left Sounds Channel Out
• 6. AUX R In, Audio Input Right
• 7. AUX L In, Audio Input Left
• 8. Video Out
• 9. CVBS In 1
• 10. CVBS In 2
• 11. Subwoofer Output
• 12. External Microphone Port
• 13. USB 1-4P
• 14. USB 2-6P
• 15. Backup Camera Input, Wifi/BT Antenna - 10P
• 16. GPS Antenna
• 17. Useless - 12P
• 18. Radio Antenna Port

General Wiring Diagram (FY8581, FY7862, MTK8667 Models)

• 1. ISO Wiring Harness/CANBUS - 16P
• 2. RX TX CAN bus Port for Harness CAN Port - 8P
• 3. Amplifier Control
• 4. Right Sounds Channel Out
• 5. Left Sounds Channel Out
• 6. AUX R In, Audio Input Right
• 7. AUX L In, Audio Input Left
• 8. Subwoofer Output
• 9. CVBS In 1
• 10. CVBS In 2
• 11. Video Out
• 12. External Microphone Port
• 13. USB 1-4P
• 14. USB 2-6P
• 15. Backup Camera Input, Wifi/BT Antenna - 10P
• 16. GPS Antenna
• 17. 4G Antenna
• 18. Radio Antenna Port
• 19. 5GHz Wifi Antenna (FY7862 Only)
• 20. Radio Antenna Port
• 21. 360 Panorama Camera - 12P (Optional)

General Wiring Diagram (7870 Model)

• 1. ISO Wiring Harness/CANBUS - 16P
• 2. 360 Panorama Camera - 12P (Optional)
• 3. RCA Cable + 4G SIM Slot - 20P
• 4. Backup Camera Input, Wifi/BT Antenna - 10P
• 5. USB1 + USB2 - 6P
• 6. USB3 - 4P
• 7. RX TX CAN bus Port for Harness CAN Port - 8P
• 8. Radio Antenna Port
• 9. Wifi Antenna
• 10. GPS Antenna
• 11. 4G Antenna
• 12. Type C to HDMI Out
• 13. Cooling Fan (power supply from 20P)

General Wiring Diagram (QCM6125 Model)

• 1. ISO Wiring Harness/CANBUS - 16P
• 2. Useless - 12P
• 3. RX TX CAN bus Port for Harness CAN Port - 8P
• 4. HDMI Port
• 5. 4G SIM Card Slot
• 6. Left Sounds Channel Out
• 7. Right Sounds Channel Out
• 8. AUX L In, Audio Input Left
• 9. AUX R In, Audio Input Right
• 10. Subwoofer Output
• 11. Video CVBS In
• 12. External Microphone Port
• 13. USB 1 + USB 2 + USB 3
• 14. Amplifier Control
• 15/16/17. USB 1 + USB 2 + USB 3
• 18. Cooling Fan
• 19. Backup Camera Input, Wifi/BT Antenna - 10P
• 20. 4G Antenna 1
• 21. 4G Antenna 2
• 22. GPS Antenna
• 23. Radio Antenna Port

Amplifier Cable Connection

If your vehicle requires an amplifier cable, ensure it is connected correctly. An example of the amplifier connector is shown below.

Operating Instructions

The CHSTEK Android Car Stereo offers a wide range of features for an enhanced in-car experience.

User Interface Overview

Wireless CarPlay & Android Auto

The unit features built-in Wireless CarPlay and Wired Android Auto, allowing you to mirror a simplified version of your phone screen directly onto the car stereo display. This enables easy access to navigation, music, messages, and voice assistants like Siri.

Digital Sound Processor (DSP) with EQ Settings

The integrated DSP allows for precise audio calibration, making your music sound as if it's coming from a live performance on your dashboard. You can customize various settings including bass enhancement, 3D surround sound, and detailed EQ adjustments.

Video: Demonstration of the car stereo's interface, including radio, equalizer, and general settings.

Steering Wheel Control (SWC)

For safer in-car operation, the unit is compatible with most steering wheel control functions. Easily switch songs, channels, and adjust volume to minimize distractions and keep your eyes on the road.

360 Panoramic Function (Optional)

If equipped with the optional 360 panoramic hardware, the system utilizes 4x220° ultra-wide-angle lens cameras to capture the vehicle's surroundings. This synthesizes a seamless 360° aerial view, eliminating dangerous blind spots and enhancing parking safety.

Other Features

• Bluetooth 5.0: Offers faster transfer speed, wider coverage, and enhanced anti-interference for stable connections.
• Built-in WiFi Modem/4G LTE SIM Card Slot: Provides internet connectivity (subject to regional compatibility).
• Navigation: Supports GPS+AGPS / GPS+GLONASS for accurate positioning.
• Radio: Features AM/FM band with RDS (TDA7708 / QN8035 or SI4755 Radio IC).
• Split Screen Function: Allows simultaneous use of two applications, such as navigation and music playback.
• OBD2 Function (Optional): Supports OBD-II On-Board Diagnostics for vehicle information.
• TPMS Support: Compatible with Tire Pressure Monitoring Systems.
• Front ADAS DVR + Rear View Dual Recorder Support: For recording driving footage and assisting with parking.
• HDMI/AV-Out: For connecting external displays.

Maintenance

To ensure the longevity and optimal performance of your CHSTEK Android Car Stereo, follow these general maintenance guidelines:

• Keep the screen clean using a soft, lint-free cloth. Avoid abrasive cleaners.
• Ensure proper ventilation around the unit to prevent overheating.
• Regularly check wiring connections for any signs of wear or looseness.
• Keep the software updated to the latest version for improved performance and security.
• Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods.

Troubleshooting

If you encounter any issues with your car stereo, refer to the following basic troubleshooting steps:

• No Power: Check all power connections and the vehicle's fuse box. Ensure the ignition is on.
• No Sound: Verify speaker connections, volume levels, and audio source selection. Check DSP/EQ settings.
• Touchscreen Unresponsive: Try restarting the unit. If the issue persists, a factory reset might be necessary (consult the system settings).
• GPS Signal Lost: Ensure the GPS antenna is properly installed and has a clear view of the sky.
• Bluetooth Connection Issues: Ensure Bluetooth is enabled on both the stereo and your device. Try unpairing and re-pairing the devices.
• CarPlay/Android Auto Not Connecting: Check USB cable connection (for wired Android Auto) or Wi-Fi/Bluetooth connection (for wireless CarPlay/Android Auto). Ensure your phone's software is up to date.

For more complex issues, please contact customer support or a qualified technician.

Specifications

The CHSTEK Android Car Stereo is available in various configurations. Below is a general overview of specifications and a comparison table for different versions.

Version Comparison Table

The table above provides a comprehensive comparison of various versions (FY818, FY8581, FY7862, MTK8667, Qualcomm 6125, FY7870) including CPU, Core count, RAM & ROM, Radio IC, Amplifier, DSP, CarPlay/Android Auto support, Resolution, Bluetooth version, Internet connectivity, USB ports, Navigation, Camera support, Cooling Fan, Factory Password, 360° Camera options, Basic Features, and Optional Features.

User Tips

• Amplifier Check: Before installation, verify if your Volvo model (2000-2004) has an OEM amplifier, especially if you notice a separate amplifier unit under the passenger seat or specific wiring. This will determine if an additional adapter is needed for optimal sound.
• Media Playback: Since there's no CD/DVD or SD card slot, prepare your media on USB drives. The unit supports MP3, MP4, WMA, and JPEG formats.
• 4G Connectivity: If you plan to use a 4G SIM card for internet access, especially in the Americas, Japan, or South Korea, confirm compatibility with your local carrier's network bands before purchase.
• 360 Camera Functionality: If you desire the 360 panoramic view feature, ensure you select a version that explicitly includes the '360 chip hardware option' during purchase, as it cannot be added later.
• Steering Wheel Controls: Take advantage of the steering wheel control compatibility to safely manage audio and calls without taking your hands off the wheel.

Warranty and Support

Your CHSTEK Android Car Stereo comes with a 2-year warranty.

For technical assistance, troubleshooting, or warranty claims, please contact the seller, Shenzhen Yanxiao Technology Co., Ltd. Store, directly. Ensure you have your purchase details and product model information ready.