1. Introduction
This document provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your ZTUZAUTO Wireless CarPlay & Android Auto Smart Box. This device is designed to integrate advanced smartphone connectivity features into your vehicle's existing infotainment system, enhancing your driving experience with navigation, music, and communication capabilities.
Please note that this product is a CarPlay interface decoder box, not a complete car screen replacement. It works by connecting to your original CD host device, preserving your vehicle's factory screen and features.

Figure 1: ZTUZAUTO Wireless CarPlay & Android Auto Smart Box in a car dashboard.
2. Compatibility
This Smart Box is specifically designed for:
- Vehicle Model: Alfa Giulietta
- Model Years: 2014 - 2019
- Original System: Harman all-in-one machine with a 7-inch screen.
Important: Before installation, please verify that your car's original screen has buttons on both sides and matches the 7-inch screen size as shown in the compatibility diagram below.

Figure 2: Visual guide for checking car compatibility (7-inch screen with side buttons).
3. Package Contents
Please ensure all the following items are included in your package:
- ZTUZAUTO Smart Box Unit
- Power Cable
- LVDS Cable
- Touch Line
- Microphone
- WiFi Antenna
- Video Transfer Cable
- Adapter Board
- Installation Manual (this document)
- Installation Tool

Figure 3: Package contents overview.

Figure 4: Detailed view of the Smart Box and accessories.
4. Installation Guide
The installation process involves connecting the Smart Box to your vehicle's existing infotainment system. This is a plug-and-play solution that does not require cutting or breaking original car wires, preserving your vehicle's integrity.
Important: If you are not confident with car electronics installation, it is highly recommended to seek assistance from a qualified specialist. Ensure all car functions are checked after installation is complete.
4.1. Installation Video Reference
For a detailed, step-by-step visual guide, please refer to the official installation video:
Video 1: ZTUZAUTO Wireless CarPlay & Android Auto Smart Box Installation and Demonstration.
4.2. Key Installation Steps (Summary)
- Preparation: Carefully remove the dashboard components to access the original CD host device.
- Disassembly of Original Unit: Open the original head unit to access its internal components.
- Adapter Board Connection: Connect the provided adapter board and ribbon cable to the original unit's circuit board. Ensure the ribbon cable is securely inserted as indicated by the red arrow in Figure 5.
- Main Wiring Harness Connection: Connect the main wiring harness from the Smart Box to the original CD host device. This is a plug-and-play connection.
- Reassembly & Testing: Carefully reassemble the original unit and dashboard components. Power on the vehicle and test all functions of the Smart Box and original system.

Figure 5: Adapter board connection point.
4.3. Camera Connections and Settings
The Smart Box supports both original factory cameras and aftermarket cameras. Refer to the diagram below for wiring and menu settings.

Figure 6: Camera connection and settings guide.
Camera Wiring (USB / Camera Cable)
- 1. Front Camera: Connect to the Front Camera input.
- 2. Rear Camera: Connect to the Rear Camera input.
- 3. R/L CVBS IN: Right/Left Composite Video Broadcast Signal Input.
- 4. Backup light 12V IN: Connect to the vehicle's backup light 12V power supply.
- 5. Rear Cam 12V OUT: Provides 12V power for the rear camera.
- 6. Front/Left/Right camera power: Power supply for additional cameras.
Original Camera Settings
For Automatic Car:
- The CVBS output is directly inserted into the rear view interface.
- Connect the cable labeled 'Rear Cam 12V OUT' to camera power.
- Set the system:
Setting→Reverse→Reverse camera→Aftermarket.
For Manual Shift Car:
- The CVBS output is directly inserted into the rear view interface.
- Connect the cable labeled 'Rear Cam 12V OUT' to camera power.
- Connect the reversing detection line to the car's taillight 12V power supply.
- Set the system:
Setting→Reverse→Aftermarket, then make the Reversing mode to be '12V Active'.
5. Operating Instructions
The ZTUZAUTO Smart Box integrates seamlessly with your car's existing controls, allowing for intuitive operation.
5.1. Activating CarPlay / Android Auto
To switch to the CarPlay/Android Auto system interface, press and hold the designated button on your steering wheel or central control panel for 2 seconds.

Figure 7: Activating the Smart Box system via steering wheel or central control.
5.2. Wireless CarPlay & Android Auto
Connect your smartphone wirelessly to access CarPlay (for iOS) or Android Auto (for Android). This allows you to use navigation, make calls, send messages, and listen to music directly from your car's display.

Figure 8: Wireless CarPlay in action.

Figure 9: CarPlay Module supporting both Android Auto and CarPlay.
5.3. Voice Control (Siri / Google Assistant)
Drive safer with voice commands. Use Siri or Google Assistant to get directions, make calls, play music, and more, all while keeping your hands on the wheel and eyes on the road.

Figure 10: Voice Control Assistant functionality.
5.4. Mirror Link (AirPlay / AutoLink)
The Mirror Link function allows you to project your phone's screen onto the car's display. This is useful for watching online videos, TV news, viewing photos, or using navigation apps directly from your phone.

Figure 11: Mirror Link functionality.
5.5. USB Multimedia Playback
The Smart Box supports USB multimedia playback, including lossless audio, 720P video, and picture files. Simply connect your USB device to the console or glove box USB port.

Figure 12: USB multimedia playback and GPS navigation apps.
5.6. Other Features
- Audio Control: Supports audio EQ adjustment and separate volume control for music and navigation.
- Microphone: Utilizes the original car's microphone (reserved installation MIC) and supports automatic correction for calls.
- Bluetooth: Supports the original car's Bluetooth call function.

Figure 13: Overview of product features.
6. Maintenance
6.1. General Care
- Keep the Smart Box and connections clean and free from dust.
- Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods.
- Ensure all cables are securely connected to prevent intermittent issues.
6.2. Software Updates
It is generally not recommended to update the software if the unit is functioning normally. However, if you encounter any issues, please contact ZTUZAUTO support. Provide your current system version number (accessible via: Module Menu Interface → Settings → System) and our engineers will provide targeted updates to resolve the problem.

Figure 14: How to check your system version for updates.
7. Troubleshooting
If you encounter any issues, please refer to the following common problems and solutions:
7.1. No Display After Installation
- Wiring Check: Ensure all cables are correctly and securely connected. Refer to the installation video and diagrams.
- DIP Code: Verify the DIP switch settings on the Smart Box. Some models may have multiple DIP code configurations; try alternative settings if available in the manual.
- Resolution Issue: If the display resolution is incorrect, contact ZTUZAUTO support for specific update files to upgrade the module.
7.2. No Sound After Connection
- Fiber Optic Cable: If your car has a fiber optic audio system, ensure the fiber optic cable is correctly connected to the Smart Box's wiring harness.
- Bluetooth Functionality: Confirm your car's original system has Bluetooth phone and Bluetooth music functions. If Bluetooth music is not available, audio may only be routed via the AUX method.
- Microphone Connection: Check that the microphone cable is fully connected to the module and that the microphone setup is correct.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | ztuzauto |
| Model Compatibility | Alfa Romeo Giulietta (2014-2019) |
| Din Size | Double Din |
| Display Size | 8.8”, 6.5” (Original car screen) |
| Is Touch Screen | No (Uses original car screen) |
| Built-in Screen | No |
| Voltage | 12 V |
| Item Weight | 1.15 kg |
| Output Type | Colored |
| Digital Media Format | CD |
| Processor | Dual-Core SUNPLUS Automotive Chip (SPHE8368) |
| Wireless Technologies | 5.8GHz |
| Cores | Dual Core |
| Special Features | WiFi function, Support steering wheel control, Support 3G/4G Network, Support Can-Bus, Built-in GPS, Charger, Mobile Phone, Voice Control, CarPlay, Android Auto, Reversing Input |
| OSD Language | Chinese (Simplified), Chinese (Traditional), Albanian, Arabic, Azeri, Irish, Estonian, Belarusian, Bulgarian, Icelandic, Persian, Boolean text (Dutch South Africa), Danish, German, Russian, French, Filipino, Finnish, Georgian, Haitian Creole, Korean, Dutch, Galicia, Catalan, Czech, Croatian, Latin, Latvian, Lithuanian, Romanian, Maltese, Malay, Macedonian, Norwegian, Portuguese, Japanese, Swedish, Serbian, Slovak, Slovenian, Swahili, Thai, Turkish, Welsh, Ukrainian, Hebrew, Greek, Spain's Basque, Spanish, Hungarian, Armenian, Italian, Yiddish, Hindi, Urdu India, Indonesia, English, Vietnamese |
| Origin | Mainland China |
| Certification | CE |
| Package Length | 23 cm |
| Package Width | 15 cm |
| Package Height | 10 cm |

Figure 15: Dual-Core SUNPLUS Automotive Chip (SPHE8368).
9. User Tips
- Secure Connections: Always ensure all electrical connections are firm and properly seated before reassembling your dashboard to prevent intermittent functionality.
- Original Controls: Familiarize yourself with your car's original system controls, as they are fully retained and often used to switch between the original system and the Smart Box interface.
- Software Updates: Keep your smartphone's operating system updated to ensure optimal compatibility and performance with CarPlay or Android Auto.
- Professional Installation: If you are unsure about any step of the installation, consider professional assistance to avoid damage to your vehicle or the product.
10. Warranty & Support
10.1. Product Warranty
ZTUZAUTO provides a 12-month quality warranty for all its products. If you encounter any issues during this period, please do not hesitate to contact us for support.

Figure 16: Warranty and service details.
10.2. Technical Support
For any technical assistance, questions, or to report issues, please contact our customer service team or email us at:
ztuzauto@support.com
We are committed to providing after-sales technical support within 24 hours.



