1. Product Overview
The CARabc Apple CarPlay and Android Auto Adapter is designed to integrate smartphone functionality into your vehicle's infotainment system. This adapter allows for safer and more intelligent use of your phone's features while driving, including navigation, communication, and media playback.
Key Features:
- Wired Apple CarPlay and Android Auto connectivity.
- Access to map navigation, phone contacts, email, notifications, and music.
- Intelligent voice assistant support (Siri for iOS, Google Assistant for Android).
- Integration with original vehicle controls (knobs, steering wheel buttons).

Image: The CARabc CarPlay and Android Auto adapter unit, featuring USB and AUX ports, and an SD card slot.
2. Compatibility
This adapter is compatible with specific Mazda and FIAT 124 models equipped with the MZD Connect system. If your vehicle does not have an MZD Connect device, this adapter will not function.
Compatible Vehicle Models and Years:
- Mazda MX-5: 2016-2020
- Mazda CX-3: 2016-2019
- Mazda CX-5: 2015-2020
- Mazda CX-9: 2016-2020
- Mazda 2: 2016-2019
- Mazda 3: 2014-2018
- Mazda 6: 2016-2020
- FIAT 124: 2017-2021
Required Software Version: Your car's infotainment system software must be version v70.00.021 or higher. An upgrade may be necessary before installation if your current software is older.

Image: The CARabc adapter integrated into a Mazda vehicle's interior, demonstrating compatibility with the MZD Connect system.
3. Package Contents
Verify that all items listed below are included in your package:
- 1 x HUB Unit
- 2 x USB Cable (Gray/Blue-Black)
- 1 x USB Cable (Gray/Blue-Brown)
- 1 x Sponae Tape (L=3m)
- 1 x Product Manuals
- 10 x Tie Wraps

Image: Contents of the CARabc adapter package, including the HUB unit, USB cables, tape, manual, and tie wraps.
4. Setup and Installation
Careful installation is crucial for proper functionality. It is recommended to consult detailed video tutorials available online for visual guidance.
4.1. Firmware Upgrade (If Necessary)
Before proceeding with hardware installation, ensure your car's CMU software is version v70.00.021 or higher. If not, you must upgrade the firmware. An older CMU software version may prevent the CarPlay/Android Auto compatible USB hub from being recognized.
Important Note:
- Before upgrading the firmware, remove any SD card from the system.
- After the upgrade is complete, reinsert the SD card. Failure to do so may result in GPS or navigation not working properly.

Image: Diagram illustrating the importance of removing the SD card before a firmware upgrade and reinserting it afterward to ensure proper GPS/navigation function.
4.2. Hardware Installation
The installation involves replacing the existing USB hub unit and connecting new USB cables. The process typically requires accessing the vehicle's console area.
- Carefully remove the old USB hub unit from its location.
- Disconnect the existing gray USB cable(s) from the CMU (Car Multimedia Unit).
- Install the new CARabc USB HUB Unit into the designated slot.
- Connect the new USB cables (Gray/Blue-Black and Gray/Blue-Brown) to the CMU.
- To prevent noise, wrap any disconnected automobile cable harness connectors with the provided sponge tape (100 x 30 mm).
- Secure all cables with the provided tie wraps.

Image: Step-by-step diagram showing the removal of the old USB hub and cables, and the installation of the new CARabc USB hub unit and cables.
5. Operating Instructions
Once installed, connect your smartphone via a USB cable to the newly installed CARabc hub to activate Apple CarPlay or Android Auto.
5.1. Connecting Your Smartphone
- Ensure your smartphone's operating system is compatible: iOS 9 or higher for Apple CarPlay, Android 6.0 or higher for Android Auto.
- Use a high-quality USB cable to connect your phone to one of the USB ports on the CARabc hub.
- The system should automatically detect your phone and launch CarPlay or Android Auto.
5.2. Using CarPlay and Android Auto
CarPlay and Android Auto provide a simplified interface for accessing essential phone functions while driving.
- Navigation: Access map applications for real-time directions.
- Communication: Make and receive calls, send and receive messages using voice commands or the car's controls.
- Music & Media: Play music, podcasts, and audiobooks from your phone's apps.
- Voice Control: Utilize Siri (iOS) or Google Assistant (Android) for hands-free operation of various functions.

Image: A smartphone connected to the CARabc adapter, displaying the CarPlay interface on the vehicle's infotainment screen, alongside an Android phone showing Android Auto.
5.3. Integration with Vehicle Controls
The adapter is designed to work seamlessly with your vehicle's existing controls, allowing you to manage CarPlay or Android Auto without distraction.
- Steering Wheel Controls: Use buttons on your steering wheel to navigate menus, adjust volume, and activate voice assistants.
- Control Knobs: The original car's control knobs can be used for menu selection and navigation within the CarPlay/Android Auto interface.
- Original Camera & Parking Sensors: Existing vehicle features like backup cameras and parking sensors remain fully functional.

Image: Visual representation of how the CARabc adapter integrates with the vehicle's original controls, including the steering wheel, console knobs, and display for camera/sensor information.
6. Troubleshooting
If you encounter issues, refer to the following common problems and solutions:
- CarPlay/Android Auto Not Recognized:
Ensure your car's CMU software is v70.00.021 or higher. If not, perform the firmware upgrade as described in Section 4.1.
- GPS or Navigation Not Working After Firmware Upgrade:
Verify that the SD card was removed before the firmware upgrade and reinserted afterward. Incorrect handling of the SD card during this process can affect navigation functionality.
- Intermittent Connection Issues:
Ensure you are using a high-quality USB cable. Sometimes, phone overheating or unstable internet connection can cause disconnections. Try a different USB cable or ensure your phone is not excessively hot.
- No Functionality After Installation:
Confirm your vehicle has the MZD Connect system. This adapter is not compatible with vehicles lacking this system. Double-check all cable connections as per the installation diagram.
If problems persist after attempting these solutions, please contact CARabc customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | CARabc |
| Model Number | TK78-66-9U0C K1414 00008FZ34 |
| Compatible Devices | Cellular Phones, GPS |
| Connector Type | USB Type A, USB Type C |
| Color | Black |
| Item Weight | 11.6 ounces |
| Package Dimensions | 6.81 x 4.92 x 3.03 inches |
8. Maintenance
The CARabc adapter requires minimal maintenance. Keep the unit and connections free from dust and moisture. Avoid exposing the unit to extreme temperatures. Ensure all cables are securely connected to prevent intermittent issues.
9. Support
For any questions regarding installation, operation, or troubleshooting, please contact CARabc customer support. Technical support is typically provided within 24 hours.
While no explicit warranty period is detailed, please retain your purchase receipt for any potential support claims.





