1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GOJOHO Android 13 Car Stereo. This head unit is specifically designed for Toyota Corolla models from 2014 to 2016, offering advanced features such as Wireless CarPlay, Android Auto, GPS navigation, and a 10.1-inch IPS touchscreen display.
Please read this manual thoroughly before installation and use to ensure proper function and to maximize your experience with the device.

Image 1.1: GOJOHO Android 13 Car Stereo main unit with its 10.1-inch display showing various application icons.
2. Package Contents
Verify that all items listed below are included in your package. If any items are missing or damaged, please contact customer support.

Image 2.1: Visual representation of the included components for the GOJOHO car stereo system.
- 1 × Android Head Unit (10.1-inch display)
- 1 × Plastic Panel (for Toyota Corolla 2014-2016 fitment)
- 1 × Main Power Cable
- 1 × RCA Cable
- 1 × Camera Cable
- 1 × Radio Cable Adapter
- 2 × USB Cables
- 1 × Radio Antenna Cable
- 1 × CANbus Cable
- 1 × GPS Antenna
- 1 × CANbus Box
- 1 × User Manual
- 1 × Installation Tool
3. Setup and Installation
The GOJOHO Android 13 Car Stereo is designed for a plug-and-play installation in Toyota Corolla models from 2014 to 2016. All necessary cables are supplied, and no cutting of original vehicle wiring is required. While designed for ease of installation, professional installation is recommended to ensure correct wiring and optimal performance.
3.1 Pre-Installation Check
- Ensure the vehicle's ignition is off and the battery is disconnected before starting installation.
- Confirm all package contents are present.
- Review your vehicle's specific dashboard removal instructions.
3.2 Installation Steps
- Carefully remove the original car stereo and dashboard trim.
- Connect the main power cable, RCA cable, camera cable, radio adapter, USB cables, CANbus cable, and GPS antenna to the corresponding ports on the new head unit.
- Integrate the CANbus box as per the wiring diagram (refer to the included wiring diagram for specific connections).
- Mount the new head unit into the dashboard opening, ensuring a secure fit with the provided plastic panel.
- Reconnect the vehicle battery and test the unit's functionality before fully reassembling the dashboard.

Image 3.1: Visual comparison showing the original car stereo setup versus the GOJOHO Android 13 Car Stereo installed in a Toyota Corolla dashboard.
4. Operating Instructions
4.1 Power On/Off
Press and hold the power button (usually located on the left side of the unit) to turn the device on or off. A short press typically mutes or unmutes the audio.
4.2 Touchscreen Interface
The unit features a 10.1-inch HD IPS capacitive touchscreen with a resolution of 1280 x 720. Navigate through menus and applications by tapping, swiping, and pinching gestures, similar to a smartphone.
4.3 Wireless CarPlay & Android Auto
The head unit supports both wireless and wired CarPlay and Android Auto via the built-in ZLINK application. This allows for seamless integration of your smartphone, enabling access to navigation, calls, messages, and music directly from the car stereo display.
- Ensure Bluetooth and Wi-Fi are enabled on your smartphone.
- Open the ZLINK application on the car stereo.
- Follow the on-screen prompts to pair your device for wireless connection or connect via a USB cable for wired connection.

Image 4.1: The car stereo displaying the CarPlay and Android Auto functions, highlighting smartphone integration.
4.4 GPS Navigation
The unit includes a built-in GPS function and supports various online and offline navigation applications such as Google Maps, Waze, iGO, and Sygic. The GPS antenna ensures accurate positioning.
- Ensure the GPS antenna is properly installed and positioned for optimal signal reception.
- Connect to Wi-Fi or a mobile hotspot for online map updates and real-time traffic information.
- Select your preferred navigation app from the main menu and input your destination.

Image 4.2: The car stereo displaying a detailed GPS navigation map, indicating current location, route, and estimated time of arrival.
4.5 Bluetooth Connectivity
The integrated Bluetooth module allows for hands-free calling and audio streaming.
- Enable Bluetooth on your smartphone and the car stereo.
- Search for available devices on your phone and select the car stereo's Bluetooth name (e.g., "GOJOHO Car Stereo").
- Confirm the pairing code if prompted.
- Once paired, you can make/receive calls and play music wirelessly.
4.6 FM RDS Radio
Access local radio stations with the built-in FM RDS radio tuner.
- Select the "Radio" application from the main menu.
- Use the on-screen controls to scan for stations, save presets, and view RDS information (if available).
4.7 Digital Sound Processor (DSP)
The built-in DSP allows for advanced audio customization, including adjusting delay, cutting frequencies, and modifying the volume of each channel to create a personalized sound experience.
- Navigate to the "Sound Settings" or "DSP" menu.
- Adjust equalizer settings, balance, fader, and other audio parameters to your preference.

Image 4.3: The DSP interface on the car stereo, illustrating options for fine-tuning audio output across different frequency ranges.
4.8 Steering Wheel Control
The unit supports the original car's steering wheel controls, allowing you to manage audio and other functions without taking your hands off the wheel.
- After correct wiring (refer to the wiring diagram), access the "Steering Learn" function in the settings menu.
- Follow the on-screen instructions to assign functions to your steering wheel buttons.

Image 4.4: The steering wheel control learning interface, where users can program their vehicle's steering wheel buttons to control the stereo.
4.9 Rear View Camera Input
The car stereo supports AHD rear view camera input. The screen automatically switches to the parking image when the reverse gear is engaged, enhancing safety.
- Ensure the included AHD backup camera is properly installed and connected to the camera input cable.
- When the vehicle is shifted into reverse, the display will automatically show the camera feed.

Image 4.5: The car stereo displaying the rear view camera feed with dynamic parking guidelines, assisting with safe reversing.
4.10 Other Functions
- Wi-Fi & Hotspot: Connect to the internet for online services and app downloads.
- Split Screen: Run two applications simultaneously on the display.
- Phone Mirror Link: Mirror your smartphone screen onto the head unit.
- Video and Audio Output: Connect external displays or audio systems.
- Multi-Language Support: The system supports over 71 languages.

Image 4.6: A comprehensive list of over 71 languages supported by the GOJOHO Android 13 Car Stereo, including various regional English dialects and other global languages.
5. Maintenance
To ensure the longevity and optimal performance of your GOJOHO car stereo, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the screen and exterior. Avoid abrasive cleaners or solvents.
- Software Updates: Periodically check for and install software updates to ensure the system runs efficiently and securely.
- Environmental Conditions: Avoid exposing the unit to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
- Cable Connections: Ensure all cables remain securely connected. Loose connections can lead to intermittent issues.
6. Troubleshooting
This section addresses common issues you might encounter. For problems not listed here, please 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. Ensure vehicle battery is charged. |
| No sound output | Volume muted, incorrect audio settings, loose speaker wires. | Check volume level and mute status. Verify audio output settings in DSP. Inspect speaker wire connections. |
| GPS signal lost or inaccurate | GPS antenna obstructed or improperly installed. | Ensure GPS antenna has a clear view of the sky and is securely connected. |
| CarPlay/Android Auto not connecting | Bluetooth/Wi-Fi off on phone, incorrect pairing, outdated ZLINK app. | Verify phone's Bluetooth/Wi-Fi. Re-pair device. Update ZLINK app. Try wired connection. |
| Screen freezes or glitches | Temporary software issue, too many apps running. | Restart the unit. Close unnecessary background applications. Perform a factory reset if persistent (note: this will erase data). |
| Rear camera not displaying | Loose camera connection, faulty camera, incorrect wiring for reverse trigger. | Check camera cable connection. Verify reverse trigger wire is correctly connected to the vehicle's reverse light circuit. |
7. Specifications
Detailed technical specifications for the GOJOHO Android 13 Car Stereo (Model 4GB RAM+64GB ROM).
| Feature | Specification |
|---|---|
| Operating System | Android 13 |
| RAM | 4GB |
| ROM | 64GB |
| Display Size | 10.1 Inches |
| Display Resolution | 1280 x 720 (HD IPS) |
| Connectivity | Bluetooth, USB, Wi-Fi |
| Special Features | Bluetooth, DSP, Touchscreen, Wireless CarPlay, Android Auto |
| GPS | Built-in GPS, supports online/offline maps (North America, Worldwide) |
| Audio Output Mode | Stereo, Subwoofer support |
| Mounting Type | Dashboard Mount |
| Item Weight | 3.3 pounds |
| Product Dimensions | 18.5 x 3.5 x 7 inches |
| Vehicle Service Type | Car (Toyota Corolla 2014-2016) |
8. Warranty and Support
GOJOHO provides a 1-year warranty for this product. Additionally, 12-month after-sales support is available to assist with any questions or issues you may encounter.
For technical assistance, troubleshooting, or warranty claims, please contact GOJOHO customer service through the retailer where the product was purchased or refer to the contact information provided with your product packaging.