1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your ATOTO S8 Pro S8G2104PR-N Double-DIN Android Car Stereo Receiver. Please read this manual thoroughly before using the product to ensure proper function and safety.
2. Safety Information
- Electrical Safety: Ensure all wiring connections are secure and correctly matched to avoid short circuits or damage. Consult a professional for installation if you are unsure.
- Driving Safety: Do not operate the device in a manner that distracts you from driving. Always prioritize road safety.
- Temperature: Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods.
- Cleaning: Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
3. Product Overview
The ATOTO S8 Pro S8G2104PR-N is a 10.1-inch QLED Double-DIN Android Car Stereo Receiver. It features an ARM Cortex Octa-Core processor, ATOTO AICE UI 11.0, and supports various connectivity options and advanced driving assistance features.

Figure 3.1: Front view of the ATOTO S8 Pro S8G2104PR-N car stereo receiver.
Key Features:
- Processor: 12nm manufacturing process, ARM Cortex Octa-Core for efficient performance.
- Operating System: ATOTO AICE UI 11.0 (based on Android Q).
- Display: 10.1-inch QLED screen for clear visuals.
- Connectivity: Dual Bluetooth with aptX HD, Wireless CarPlay & Android Auto, USB Tethering, Built-in 4G Cellular Modem (SIM card not included).
- Advanced Driving Features: Virtual Surround-View (VSV) and Live Rear-View (LRV) support (requires ATOTO AC-HD03LR camera, sold separately).
- Audio: Qualcomm aptX HD codec for high-quality Bluetooth audio.

Figure 3.2: Overview of QLED display technology, aptX HD audio, and Virtual Surround-View (VSV) / Live Rear-View (LRV) capabilities.
4. Setup & Installation
4.1 Mounting Style
The S8G2104PR utilizes the DAH10D mounting style, which is a Double-DIN Adaptive Head-unit with a 10.1-inch floating display. The display can be adjusted for height and viewing angles. Ensure that the large screen does not obstruct air vents, emergency switches, or other controls in your vehicle.

Figure 4.1: Illustrates the DAH10D mounting dimensions and lists included accessories for installation.
4.2 Wiring Diagram
Refer to the following diagram for proper wiring connections. Incorrect wiring can damage the unit or your vehicle's electrical system.

Figure 4.2: Detailed wiring diagram for connecting the ATOTO S8 Pro to your vehicle's electrical system and peripherals.
4.3 Optional Accessories (Sold Separately)
The ATOTO S8 Pro is compatible with several optional accessories to enhance its functionality:
- ATOTO AC-44P2 1080P On-dash DVR Camera
- ATOTO AC-44F5 Steering Wheel IR Remote
- ATOTO AC-4450 Bluetooth OBD II Scanner / Code Reader
- ATOTO AC-HD02LR HD Live Rear-view Camera or AC-HD03LR Wide-angle HD Rear View Camera (for Virtual Surround-View & Live rearview)
- ATOTO AC-UTP1 USB TPMS (Tire Pressure Monitoring Sensor)
- ATOTO Video Output Adaptor (AC-AHV68: USB to HDMI Adaptor; AC-AHV48: USB To RCA Adaptor)
- ATOTO AC-HAV50 HDMI to AHD Video Converter
- ATOTO CS-101SW 10" Slim Amplified Subwoofer
- ATOTO CA-AEC02 Plug-n-Play 4 Channel Power Pack Amplifier
5. Operating Instructions
5.1 Basic Operation
The unit powers on with the vehicle's ignition. Navigate the AICE UI 11.0 using the touchscreen. Common functions include audio playback, navigation, and app access.
5.2 Touch Gestures
The S8 supports six touch gestures for quick access to functions. For example, a two-finger or three-finger tap can quickly enter the multi-task menu, switch between preset EQ modes, or adjust screen brightness. These gestures are designed to improve operational safety while driving.

Figure 5.1: Examples of touch gestures for quick control of the stereo unit.
5.3 Split Screen Display
The unit supports split-screen display, allowing two applications to run simultaneously on the screen. This feature can be accessed via the multi-task menu.
5.4 Steering Wheel Controls
The S8 Pro is compatible with existing steering wheel audio controls. An optional ATOTO AC-44F5 Steering Wheel IR Remote can also be used for additional control.

Figure 5.2: Demonstrates compatibility with steering wheel controls and the Speed Compensated Volume Control (SCVC) feature.
6. Connectivity
6.1 Internet Access
The S8 Pro offers multiple methods for internet access:
- Wi-Fi: Connect to available Wi-Fi networks.
- Bluetooth Tethering: Connect to your phone's Bluetooth tethering for internet access.
- USB Tethering: Use a USB connection to share your phone's internet.
- Built-in 4G Cellular Modem: Insert a compatible SIM card (not included) for direct 4G internet access.

Figure 6.1: Visual representation of various internet connectivity methods including Wi-Fi, Bluetooth, USB, and 4G.
6.2 Dual Bluetooth with aptX HD
The unit features Dual Bluetooth, allowing simultaneous connection to your phone and other Bluetooth devices. Bluetooth 1 supports Qualcomm aptX HD codec for 24-bit music quality, provided your phone also supports this codec. Bluetooth 2 supports phone Bluetooth tethering for internet access.
6.3 Wireless CarPlay & Android Auto
The S8 Pro supports both wired and wireless Apple CarPlay and Android Auto, integrating your smartphone's features directly into the car stereo display.
7. Advanced Features
7.1 DriveChat AI Driving Assistant
The DriveChat APP provides AI voice control for managing the car stereo. It allows for hands-free operation of calls, music playback, and other functions. Users can customize wake-up words and switch between different AI chatbots for specific needs.

Figure 7.1: Depicts the DriveChat AI Assistant interface with voice command examples.
7.2 Virtual Surround-View (VSV) & Live Rear-View (LRV)
When connected to an ATOTO AC-HD03LR camera (sold separately), the unit can display a Virtual Surround-View (VSV) and Live Rear-View (LRV). The VSV feature uses a panoramic image stitching algorithm to create a dynamic, virtual surroundings view. LRV allows users to see the rearview even when moving forward, improving visibility by removing obstructions.

Figure 7.2: Illustrates the Virtual Surround-View (VSV) and Live Rear-View (LRV) functionalities.
7.3 Speed Compensated Volume Control (SCVC)
SCVC automatically adjusts the system volume based on vehicle speed, compensating for road and wind noise. This feature is applicable at speeds of 50 mph or higher and uses GPS positioning algorithms.
7.4 TrackHU GPS Tracking App
TrackHU is an exclusive ATOTO GPS tracking application installed on the stereo. It provides real-time tracking, OsmAnd's 4-satellite positioning, track playback with speed control, detailed reports, and instant online/offline status and geofence alerts. This app assists in monitoring vehicle journeys and enhancing security.

Figure 7.3: Icon representing the TrackHU GPS Tracking application.
8. Troubleshooting
If you encounter issues with your ATOTO S8 Pro, consider the following basic troubleshooting steps:
- No Power: Check all power connections and fuses. Ensure the vehicle's ignition is on.
- No Sound: Verify speaker connections, volume levels, and audio source selection.
- Bluetooth/Wi-Fi Issues: Ensure Bluetooth/Wi-Fi is enabled on both the stereo and the connected device. Try restarting both devices.
- System Unresponsive: Perform a soft reset by pressing and holding the power button for 10 seconds, or refer to the device settings for a factory reset option (note: this will erase all user data).
- Display Problems: Check display cable connections. Adjust brightness settings.
For persistent issues, contact ATOTO customer support or consult a qualified technician.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | ATOTO |
| Model Number | S8G2104PR-N |
| Connectivity Technology | WiFi, Bluetooth, USB, Ethernet (via USB Tethering), Android Auto, CarPlay |
| Special Feature | aptX HD |
| Compatible Devices | Smartphone, Tablet, Amplifier, Speaker, Camera |
| Connector Type | 3.5mm Jack, USB |
| Video Encoding | H.264, H.265/HEVC |
| Audio Output Type | Bluetooth, Headphones, RCA |
| Wireless Technology | Bluetooth, Wi-Fi, 4G |
| Format | 4K |
| Unit Count | 1.0 Count |
| ASIN | B0GLNYV4PT |
10. Warranty & Support
The ATOTO S8 Pro S8G2104PR-N is manufactured by ATOTO. For warranty information, please refer to the documentation included with your product or visit the official ATOTO website. Optional protection plans are available for purchase, offering extended coverage for 2 or 3 years, or a monthly complete protect plan.
For technical support, product inquiries, or service, please contact ATOTO customer service through their official channels. Keep your purchase receipt and product model number (S8G2104PR-N) available when seeking support.