1. Introduction and Overview
This manual provides detailed instructions for the installation, operation, and maintenance of your CHSTEK 7870 Multimedia System. Designed specifically for Skoda Octavia Mk2 A5 models from 2004 to 2014, this system integrates advanced features such as Android 13, Wireless CarPlay, Wired Android Auto, GPS navigation, DSP audio processing, and more, to enhance your in-car entertainment and connectivity experience.
Important Notes:
- This model does not have a built-in DVD/CD player and does not support DVD/CD disc functions.
- This model does not have a built-in GPS or SD Card Slot. External media can only be used via USB Cable.
- The touch screen is 7 inches with a resolution of 1280*720P.
- This model does not support 4G connectivity.
2. Package Contents
Please verify that all items are present in your package:
- 1 x CHSTEK 7870 Multimedia System (Radio device)
- 1 x Plug and Play Cable
- 1 x Gift Reverse Camera
- USB Cables (4P and 6P)
- GPS Antenna
- Harness Wire
- Rear View Camera Input / WiFi / Bluetooth Antenna
- Microphone Cable
- 4G Antenna (Note: This model does not support 4G, this antenna may be for other models or future compatibility)
- RCA Cable
- RCA Cable + MIC Port + 4G SIM Card Slot (Note: This model does not support 4G, this slot may be for other models or future compatibility)
3. Specifications
| Feature | Specification |
|---|---|
| Brand Name | CHSTEK |
| Model Number (OEM NO.) | FG-7021 |
| For Vehicle Brands/Model | Skoda Octavia Combi (2009) |
| Din | Double Din |
| Operating System | Android |
| RAM | 6G (Various configurations available, e.g., 2G+32G, 4G+64G, 6G+128G) |
| ROM | 128G (Various configurations available) |
| Max External Memory | 128G |
| Display Size | 8" |
| Resolution | 1280*720P |
| Is touch screen | Yes |
| Built-in Screen | Yes |
| Built-in DVD Player | No |
| Built-in CD player | No |
| Voltage | 12 V |
| Output Type | Colored |
| Special Features | Built-In Speaker/Microphone, WiFi function, Support 3G Network (Note: 4G not supported), Support Can-Bus, Built-in GPS, Charger, Mobile Phone, MP3 players, DSP, CarPlay, Android Auto, Reversing Input, Split Screen, Support steering wheel control |
| Digital Media Format | Mp3, MP4, WMA, JPEG |
| OSD Language | Multi-language support including English, Chinese (Simplified/Traditional), Arabic, German, French, Korean, Japanese, Spanish, Italian, Russian, etc. |
| Network | LTE WIFI Bluetooth Autoradio (Note: 4G not supported) |
| Certification | CE |
4. Setup and Installation
Professional installation is highly recommended for this product. Incorrect installation can lead to damage to the unit or your vehicle, and may void the warranty. Always test the unit before final installation.
4.1 Pre-Installation Check
Before beginning installation, ensure your vehicle is compatible (Skoda Octavia Mk2 A5 2004-2014) and that all package contents are present. Disconnect the vehicle's battery to prevent electrical shorts.
4.2 Wiring Diagrams
Refer to the following diagrams for proper wiring connections. These diagrams illustrate the ISO Wiring Harness and RX TX Canbus Protocol connections, as well as various input/output ports.
4.3 Installation Steps (General)
- Carefully remove the original car radio unit from your dashboard.
- Connect the provided plug-and-play cable to the vehicle's wiring harness and the multimedia system.
- Connect all necessary accessories such as the GPS antenna, USB cables, and reverse camera input according to the wiring diagrams.
- If applicable, connect the CAN-Bus decoder for steering wheel controls and other vehicle data integration.
- Before fully securing the unit, perform a preliminary test to ensure all functions (power, audio, display, touch, navigation, radio, Bluetooth) are working correctly.
- Carefully mount the multimedia system into the dashboard opening.
- Secure the unit and reassemble any removed dashboard panels.
- Reconnect the vehicle's battery.
4.4 Visual Comparison: Before and After Installation
5. Operating Instructions
Your CHSTEK 7870 Multimedia System offers a wide range of features for an enhanced driving experience. This section covers the primary operating functions.
5.1 Powering On/Off and Basic Navigation
Press the power button (usually labeled PWR or VOL) to turn the unit on or off. The system runs on Android, providing a familiar interface. Navigate through menus and applications using the touch screen.
5.2 Wireless CarPlay and Wired Android Auto
The system supports both Wireless CarPlay for iPhone users and Wired Android Auto for Android device users. These features allow you to mirror a simplified version of your phone's screen onto the car radio display, making driving safer and more convenient.
- CarPlay: A smarter, safer way to use your iPhone while driving. Get directions, make calls, send/receive messages, and enjoy your favorite music directly from the car's display.
- Android Auto: Mirrors features from your Android device, including GPS mapping/navigation, music playback, SMS, telephone, and web search.
Connect your smartphone via Bluetooth for Wireless CarPlay or via a USB cable for Wired Android Auto. The connection typically takes a few seconds.
5.3 Android System Functionality
The system runs on a customized Android operating system for cars. You can download and install Android applications directly from the Google Play Store, expanding the functionality of your car's multimedia system.
5.4 Built-in WiFi
With built-in WiFi, you can connect to any network hotspot (e.g., from your smartphone) to access online navigation, stream online video and music, and download apps from the Google Play Store.
5.5 Steering Wheel Control
The system is compatible with most steering wheel control functions, allowing you to safely switch songs, channels, and adjust volume without taking your hands off the wheel. This minimizes distractions and helps you keep your eyes on the road.
5.6 Radio Function
The radio supports both automatic and manual station searching. You can easily drag and drop station icons to customize your channel list. It also features built-in RDS (Radio Data System) for European users, automatically selecting stable frequencies.
5.7 GPS Navigation
The system comes with Google Maps and Waze pre-installed. You can use online navigation for real-time traffic updates or download offline map data packages for use without an internet connection. Navigate anywhere, anytime.
5.8 Bluetooth Connectivity
The built-in Bluetooth module allows for hands-free calling and audio streaming. Pair your phone to synchronize contacts, make calls, and play music wirelessly. The system includes a built-in microphone for clear communication.
5.9 Customizable Button Lights
The unit features built-in colorful button lights. You can customize the color of the buttons to match your vehicle's interior lighting or your personal preference.
5.10 Reversing Camera Input
When reversing your car, the system automatically switches to the reverse camera screen, displaying parking lines to assist you in safe maneuvering.
5.11 Advanced Driving Assistance System (ADAS DVR)
The system supports an optional front ADAS DVR and rear view dual recorder. The ADAS feature provides useful warnings and records in 1080P, contributing to safer driving.
5.12 Split Screen Function
The split-screen feature allows two functions to run and display simultaneously on the screen. Please note that some third-party applications may not fully support split-screen functionality if there are conflicts between their operations.
6. Maintenance
To ensure the longevity and optimal performance of your CHSTEK 7870 Multimedia System, follow these general maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the screen and exterior. For stubborn smudges, lightly dampen the cloth with water or a screen-safe cleaner. Avoid abrasive materials or harsh chemicals.
- Software Updates: Periodically check for and install available software updates to ensure the system has the latest features, bug fixes, and security enhancements.
- Temperature: Avoid exposing the unit to extreme temperatures, both hot and cold, for extended periods.
- Power Supply: Ensure the vehicle's electrical system is in good condition to provide a stable power supply to the unit.
- Cable Connections: Periodically check all cable connections to ensure they are secure and free from damage.
7. Troubleshooting
If you encounter issues with your multimedia system, try the following troubleshooting steps:
- No Power: Check all power connections and the vehicle's fuse box. Ensure the unit is properly installed and receiving power.
- No Sound: Check speaker connections, volume settings, and audio source selection. Ensure the mute function is not activated.
- Touch Screen Unresponsive: Try restarting the unit. If the issue persists, a factory reset might be necessary (refer to system settings).
- GPS Signal Lost: Ensure the GPS antenna is properly connected and has a clear view of the sky. Check your location settings in the system.
- Bluetooth Connectivity Issues: Ensure Bluetooth is enabled on both the multimedia system and your smartphone. Try unpairing and re-pairing the devices.
- CarPlay/Android Auto Not Connecting: For Wireless CarPlay, ensure Bluetooth and Wi-Fi are enabled on your iPhone. For Wired Android Auto, ensure a high-quality USB cable is used and your Android phone has Android Auto installed and is compatible. Try restarting both devices.
- System Freezes/Crashes: Perform a soft reset (if available, usually a small reset button) or restart the unit by turning off the vehicle's ignition and restarting. If frequent, consider a factory reset.
If these steps do not resolve the issue, please contact customer support for further assistance.
8. Warranty and Support
8.1 Product Warranty
All CHSTEK multimedia systems come with a 12-month manufacturer warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
The warranty will be voided under the following conditions:
- Damage caused by improper installation, accident, misuse, abuse, improper wiring, or incorrect voltage operation.
- Damage resulting from undue wear and tear, dirt, neglect, or any accident.
- Any damages caused by improper packaging when the item is returned to us.
- If the item has been disassembled or repaired by unauthorized personnel.
8.2 Returns and Replacements
If you need to return the product, you are responsible for the return shipping fee. Please inform us of the reason for your return request and provide clear pictures or a video as proof. Items returned without prior notification or report may not be processed.
8.3 Professional Installation Recommendation
We strongly recommend that you seek professional assistance for the installation of this product. Professionals can ensure correct installation and test the unit thoroughly before final setup. We are not responsible for any issues or damages arising from improper installation or uninstallation.
8.4 Customer Support
For any questions, technical support, or warranty claims, please contact CHSTEK customer service. Provide your product model and purchase details for faster service.