1. Introduction
Welcome to the Roinvou Android 15 Car Stereo user manual. This guide provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your new car stereo system, designed specifically for Ford Focus models from 1998 to 2005. This system features a 9-inch Incell touch screen, wireless CarPlay and Android Auto, GPS navigation, Bluetooth, FM/RDS radio, Wi-Fi connectivity, an audio equalizer (EQ), steering wheel control (SWC) compatibility, and includes a rear camera for enhanced safety.

Image 1.1: Overview of the Roinvou Android Car Stereo interface and key features for Ford Focus 1998-2005.
2. Package Contents
Please verify that all items listed below are included in your package. If any items are missing or damaged, please contact customer support.
- Roinvou Android Car Stereo Unit for Ford Focus 1998-2005
- Power Cable
- RCA Cable
- Rear Camera Input Cable
- GPS Antenna
- USB Cable
- Rear Camera
- External Microphone
- Installation Accessories
- User Manual (this document)
- Installation Tool

Image 2.1: Product dimensions and a visual list of included accessories.
3. Setup & Installation
Proper installation is crucial for optimal performance. If you are unsure about any steps, it is recommended to seek professional assistance.
3.1. Wiring Diagram
Refer to the following diagram for connecting the main power and accessory cables. Ensure all connections are secure to prevent malfunctions.

Image 3.1: Detailed diagram illustrating the various wiring ports and their connections, including power, RCA, USB, camera input, GPS, and radio antenna.
- Power Cable: Connect to the vehicle's power supply. Ensure correct polarity.
- RCA Cable: For audio output to external amplifiers or subwoofers.
- USB Cable: For connecting USB devices or wired Mirror Link.
- Camera Input: For connecting the rear view camera.
- GPS Antenna: Mount in a location with a clear view of the sky for optimal signal reception.
- Radio Antenna: Connect your vehicle's FM/AM antenna.
Attention: Please check whether the power cord interface matches your vehicle's wiring. If there is a problem, please contact us for assistance.
3.2. Backup Camera Installation
The included rear camera provides a clear, wide-angle view for safer parking and reversing. Follow these steps for installation:

Image 3.2: Diagram illustrating the wiring for the backup camera, including power and signal connections to the car stereo.
- Connect the yellow RCA video cable from the camera to the "Camera Input" port on the car stereo.
- Connect the red wire from the camera's power cable to the vehicle's reversing lamp power (+12V).
- Connect the black wire from the camera's power cable to a ground point (GND) on the vehicle chassis.
- The small red wire on the RCA video cable (trigger wire) should be connected to the reverse trigger wire of the car stereo (usually labeled "BACK" or "REVERSE"). This signals the stereo to switch to the camera view when reversing.
- Route the cables carefully to avoid pinching or damage.
4. Operating Instructions
4.1. Touch Screen Operation
The 9-inch Incell touch screen offers intuitive control. Tap, swipe, and pinch gestures are supported for navigation and interaction with applications.

Image 4.1: Visual representation of the Ultra-HD Resolution In-Cell Screen technology, highlighting its superior clarity and touch sensitivity compared to traditional screens.
4.2. Wireless CarPlay & Android Auto
Connect your iPhone or Android smartphone wirelessly to access navigation, calls, messages, and music directly on the car stereo display.
- Ensure Bluetooth and Wi-Fi are enabled on your smartphone.
- On the car stereo, open the CarPlay or Android Auto application.
- Follow the on-screen prompts to pair your device.
- Wired Mirror Link is also supported via USB for broader compatibility.
4.3. Bluetooth Connectivity
Pair your smartphone for hands-free calling and audio streaming.
- Go to the Bluetooth settings on the car stereo.
- Enable Bluetooth on your smartphone and search for available devices.
- Select the car stereo (e.g., "Roinvou Car Stereo") from the list and confirm pairing.
4.4. GPS Navigation
The integrated GPS module provides accurate navigation. Pre-installed maps or online navigation apps (e.g., Google Maps, Waze via CarPlay/Android Auto) can be used.
- Ensure the GPS antenna is properly installed and has a clear view of the sky.
- Open your preferred navigation application from the main menu.
- Enter your destination and follow the voice and visual prompts.
4.5. FM/RDS Radio
Access your favorite radio stations with clear sound quality and RDS information.
- Open the "Radio" application.
- Use the scan function to find available stations or manually tune to a frequency.
- RDS (Radio Data System) will display station information, song titles, and traffic announcements where available.
4.6. Steering Wheel Control (SWC)
Integrate your vehicle's steering wheel controls for safe and convenient operation of the car stereo.

Image 4.2: Instructions for configuring steering wheel controls, with and without a CANbus decoder.
Without CANbus Decoder:
- Connect the plugs or the steering wheel control wires (KEY1/KEY2) in the power cable to the corresponding port or wire of your original car.
- Go to 'Steeringwheelkey' in the settings and perform a manual match to activate the button functions.
With CANbus Decoder:
- Connect the CANbus before powering on the machine.
- Follow this path: Apps > Settings > Factory settings (1234) > CAN Settings to make SWC work properly.
- First, select the brand of the CANbus decoder, then select the matching model and year according to the actual situation.
4.7. Audio Equalizer (EQ)
Customize your audio experience with the built-in equalizer. Adjust frequency bands to suit your preferences or choose from preset sound profiles.
- Access the "EQ" application from the main menu.
- Drag the sliders to adjust individual frequency levels or select a preset (e.g., Pop, Rock, Jazz).
4.8. Split Screen Functionality
The split-screen feature allows you to run two applications simultaneously, such as navigation and music, for enhanced multitasking.
- Open the first application you wish to use.
- Press and hold the recent apps button or swipe up from the bottom (depending on UI) to enter split-screen mode.
- Select the second application to display alongside the first.
5. Maintenance
To ensure the longevity and optimal performance of your Roinvou car stereo, follow these 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 software updates through the system settings or the manufacturer's website. Updates can improve performance, add new features, and fix bugs.
- Temperature: Avoid exposing the unit to extreme temperatures. Prolonged exposure to direct sunlight or very cold conditions can affect performance and lifespan.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion.
- Backup Data: If you store important data or settings on the device, consider backing them up regularly.
6. Troubleshooting
If you encounter issues with your car stereo, refer to the following table for common problems and solutions. If the problem persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | Loose power connection, blown fuse, vehicle battery issue | Check power cable connections. Inspect vehicle fuses. Verify vehicle battery charge. |
| No sound output | Volume too low, mute activated, speaker wiring issue, incorrect audio source | Increase volume. Check mute status. Verify speaker connections. Select correct audio source. |
| GPS signal lost or inaccurate | GPS antenna obstruction, poor antenna connection | Ensure GPS antenna has a clear view of the sky. Check antenna connection. |
| Bluetooth not connecting | Bluetooth off on device/stereo, pairing mode not active, interference | Ensure Bluetooth is on for both devices. Activate pairing mode. Try re-pairing. |
| Rear camera not displaying | Camera wiring issue, reverse trigger not connected, faulty camera | Check camera power and video connections. Verify reverse trigger wire connection. Test camera functionality. |
| Touch screen unresponsive | System freeze, software issue | Restart the unit (power cycle). If issue persists, perform a factory reset (refer to settings). |
7. Specifications
Detailed technical specifications for the Roinvou Android 15 Car Stereo:
| Feature | Detail |
|---|---|
| Brand | Roinvou |
| Model | 4G+64G Android 15 Autoradio for Ford Focus 1998-2005 |
| Operating System | Android 15 |
| Processor | 4-core |
| RAM | 4GB |
| Internal Storage | 64GB |
| Screen Type | 9-inch Incell Touch Screen |
| Screen Resolution | 1280x720 |
| Connectivity | Bluetooth, USB, Wi-Fi, FM RDS |
| Special Features | Wireless CarPlay, Wireless Android Auto, Mirror Link, EQ, GPS, SWC, Rear Camera Support, Split Screen |
| Compatible Devices | Smartphone |
| Audio Output Mode | APE/FLAC/WAV/MP3/WMA |
| Surround Sound Channels | 4 |
| Video Encoding | MKV/RMVB/AVI/MP4/MDV |
| Wattage | 45 Watts |
| Supported Internet Services | Netflix, YouTube, iTunes |
| Country of Origin | China |
8. Warranty & Support
8.1. Warranty Information
This Roinvou car stereo comes with a 24-month warranty from the date of purchase. The warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
8.2. Customer Support
For any inquiries, technical assistance, or warranty claims, Roinvou offers online support for lifetime inquiries. Our support team aims to respond within 24 hours.
Please refer to the contact information provided with your purchase or visit the official Roinvou website for support details.







