The Joying Technology Co., Ltd. produces Android-based head units for vehicle infotainment systems. Installation generally involves removing the existing head unit, connecting the Joying unit’s harness to the vehicle’s factory cables, and testing functionality. The provided documentation details installation experiences in specific vehicle models, common questions and answers regarding operation, and troubleshooting guidance. The units support optional accessories such as rearview and DVR cameras, and vehicle diagnostics via an OBD2 accessory. Firmware updates and ROM installation are possible, though unsupported by Joying’s technical staff.
Installation Process Overview
According to the available documentation, installing a Joying head unit is designed to be a process achievable for many users within 30 to 45 minutes using basic hand tools. However, if a user is not comfortable with such tasks, professional installation by a car audio shop or mechanic is recommended. The core steps, as outlined in the Joying user manual, are consistent across most vehicle makes and models.
These steps include removing trim around the existing head unit, disconnecting the cables from the original unit, reconnecting those cables to the Joying head unit, and then testing the new unit to ensure all connections are functioning correctly. Finally, the dashboard trim is replaced. Installation of optional accessories, such as rearview or DVR cameras, will add to the overall installation time as they require placement and cable routing. Joying provides an online installation and configuration video at http://www.carjoying.com/InstallGuide to visually demonstrate the process.
Vehicle-Specific Installation Examples
The documentation includes several examples of Joying head unit installations in various vehicle models. These examples, primarily sourced from customer reviews, illustrate the adaptability of Joying products.
- 2020 Civic Type R (FK8): A user, Sherry, documented their installation of a 9" Joying head unit, specifically noting the need for Option C (with factory amplifier) for Type R models. They also added an AHD Reverse Camera. The installation involved removing the OEM head unit and climate control, then connecting the Joying harness to the factory cables.
- Subaru Impreza RS (2005): A customer, Mark Bondarenko, successfully installed a 7" universal double din unit (UM135N2). He reported a positive experience with the product and support, emphasizing the ease of installation.
- Subaru BRZ (2013): Shayan kordouni and Gabriel bautista installed an 8" Toyota universal double din unit (TM138P2) and added heatsinks and thermal paste to the CPU cover to manage temperature.
- Subaru Legacy (2009): Anthony Wanyoike installed an 8" universal single din unit (UMS01N2).
- Subaru STI (2014): James installed a 10" PX5 Octa Core double din unit (UM134P2).
- Citroen Berlingo: Joying units can be installed in this model, and no frame kit is required.
- Citroen Jumper: Joying units can be installed in this model, and no frame kit is required.
- Audi A4: Installation options include using a single din frame kit or a double din frame kit, depending on the vehicle’s existing structure. Frame kit dimensions for double din installations are specified as 178100mm or 178102mm.
- Audi A6: Single din radios can be installed directly without a frame kit.
Harness Connections and Compatibility
The documentation indicates that the Joying head unit harness is generally “plug and play” with factory cables. However, the Civic Type R installation guide specifically highlights the importance of selecting the correct option (Option C) for vehicles with a factory amplifier. The documentation does not provide a comprehensive compatibility list for all vehicle makes and models, but encourages users to contact Joying at [email protected] with their car model, year, and dashboard picture for assistance in selecting a suitable unit.
Firmware and ROM Management
Joying head units run on the Android 4.4.4 operating system (as of September 9, 2015, according to the user manual). Users have the capability to install different ROMs (replacement operating system images). However, Joying’s technical support staff will not provide assistance with this process, nor will they support troubleshooting issues arising from the use of third-party ROMs. The installation process for a replacement ROM is identical to the process for upgrading the firmware and Android operating system. It is crucial that the MCU.IMG file used is specifically designed for Joying head units, as an incorrect image can render buttons and various applications inoperable. Installing a third-party ROM will also result in the loss of iPhone and Android screen casting functionality.
Vehicle Diagnostics and OBD2 Support
Joying head units can be used for vehicle diagnostics when paired with an OBD2 accessory available from the Joying website. When connected, and with an application such as Torque installed, users can monitor vehicle operating parameters in real-time and read performance data and any stored vehicle problem codes.
Troubleshooting and Customer Support
The Joying user manual includes a “Troubleshooting” section and provides contact information for customer support. While the head units are described as high-quality, problems can occur during installation, setup, or daily use. Joying’s technical support staff can be reached via email at [email protected] or [email protected]. To expedite the support process, users are advised to include the following information in their email: a detailed description of the problem, the head unit model number, and the vehicle make and model.
Optional Accessories
The documentation mentions the availability of optional accessories, including:
- Rearview Camera: Compatible with Joying head units for enhanced parking assistance.
- DVR Camera: For recording driving footage.
- OBD2 Accessory: Enables vehicle diagnostics.
Frame Kit Information
For certain vehicle models, such as the Audi A4, frame kits are required for proper installation. The documentation specifies dimensions for double din frame kits (178100mm or 178102mm) and provides links to purchase both single and double din frame kits.
Conclusion
Joying head units offer a range of features for vehicle infotainment, including Android OS compatibility, optional accessory support, and vehicle diagnostics. Installation generally follows a standard procedure of removing the existing head unit and connecting the Joying unit’s harness. While installation is designed to be user-friendly, professional installation is recommended for those unfamiliar with automotive electronics. Firmware updates and ROM installation are possible, but unsupported by Joying’s technical support. Users encountering issues can contact Joying’s support team for assistance, providing detailed information about their setup and the problem encountered.