Ford Focus Mk2 Sony Stereo Radio CD Player Head Unit 7M5T-18C939-EB

Ford Focus Mk2 Sony Stereo Radio CD Player Head Unit is a factory-fitted module from the Electronic control modules and controllers category, designed for integration with the vehicle's electrical system. It offers stable audio system performance while maintaining the original cockpit styling and full compatibility with the car's factory functions.

Specifications and technical data

• SKU: 7M5T-18C939-EB
• Mark: Ford
• Condition: Used
• OEM Part Number: 7M5T-18C939-EB
• Substitutable numbers: 7M5T-18C939-EB, 7M5T-18C939-EH, 7M5T18C939EH, 1830411
• Category: ECUs & Computer Modules

Characteristics and intended use

The Sony CD radio for the Ford Focus Mk2 is a multimedia system component that interfaces with the vehicle's installation via dedicated connectors and communication buses. As a control module, it is responsible for CD playback, audio source management, and integration with panel buttons and other onboard electronic components.

Thanks to its design compliant with manufacturer standards, the device ensures a proper fit in the center console, as well as predictable behavior within the factory audio system. This solution is particularly beneficial for users who wish to maintain the functional and visual consistency of the interior.

Integration with the vehicle's electrical system

As a component from the Electronic control modules and controllers category, the Sony radio works with the vehicle's electrical system in the manner designed by the manufacturer. The appropriate connector architecture facilitates installation in place of the factory radio, without the need for interfering with wiring harnesses or using non-factory adapters.

Once properly connected, the module can interact with other electronic vehicle systems, such as control from the central panel or communication with selected comfort systems. This type of integration promotes stable operation of the entire multimedia system.

Benefits of choosing an original module

Using an original Sony CD radio in a Ford Focus Mk2 allows for the preservation of factory ergonomics and predictable operation of all audio functions. The user receives a solution tailored to the interior architecture, without the need for panel modifications or the use of additional mounting frames.

Choosing such a module is also advantageous from a service perspective – a design consistent with manufacturer documentation facilitates diagnostics and any future work on the electrical system. It is a practical solution for those who prefer to maintain the original vehicle configuration rather than installing universal devices.

Product condition and practical application

The offered item is intended for re-installation in a vehicle, replacing the factory radio. By maintaining its original form and function, it can be used both as a replacement for a damaged module and to restore the serial configuration after previous audio system modifications.

Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and consult with an automotive electrician or electronics technician to ensure proper integration with the existing system.

Matching by part numbers and expert knowledge

Selecting the appropriate module from the electronic control group should be based on manufacturer markings and the vehicle's equipment configuration. In practice, this means checking compatibility with service documentation or consulting a specialized service center, which minimizes the risk of compatibility issues.

If you would like to deepen your knowledge regarding the selection of used electronic modules, methods of verifying compatibility, and safe installation principles, check out the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

If you are planning a comprehensive repair or upgrade of the onboard electronics in your Ford and need other components from the same group, such as comfort modules, body control units, or other vehicle system management units, check out the available parts in the Ford electronic control modules and controllers category.