Mercedes R172 Centre Console Aux Wiring Harness Cable A1728201604

Mercedes R172 Centre Console Aux Wiring Harness Cable is an original electrical installation component designed to support the AUX port within the centre console. Thanks to its factory-fit design for Mercedes R172 series models, the harness ensures a stable signal connection and proper integration with the factory multimedia system. It is a practical solution for repairs, retrofitting, or restoring full functionality to the vehicle's sockets.

Specifications and technical data

• SKU: A1728201604
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1728201604
• Substitutable numbers: A1728201604, A 172 820 16 04
• Part type: Power Outlet
• Category: Power Outlets & Lighters

Purpose and function of the AUX harness

The centre console AUX wiring harness is responsible for audio signal transmission between the cabin connector and the multimedia system control unit. A properly selected component of this type is crucial when:

• the factory AUX socket has stopped working or is operating unstably,
• the wires were damaged during console disassembly,
• you are performing a retrofit or restoring the original equipment configuration.

The original Mercedes harness minimizes the risk of interference, loose connections, and compatibility issues that often arise with universal solutions.

Construction and fitment for Mercedes R172

Mercedes R172 Centre Console Aux Wiring Harness Cable has been designed specifically for the interior geometry of R172 models, which facilitates routing the wires through factory channels and mounts. Appropriately selected segment lengths and serial connectors allow for:

• trouble-free connection to the existing vehicle installation,
• maintaining the original wire routing in the centre tunnel,
• reducing mechanical stress that could lead to wire or insulation breakage.

As a result, installation is predictable, and the risk of installation errors is significantly reduced.

Benefits of using an original Mercedes harness

Using a factory wiring harness in the Car sockets and cigarette lighters category translates into a number of practical benefits:

• secure connection with the factory AUX socket and multimedia module,
• consistency with the vehicle's original electrical architecture,
• reduction of potential diagnostic problems in the future,
• aesthetic routing of the installation inside the centre console.

This solution is particularly beneficial for users who want to maintain the original character of the interior and the full functionality of the factory audio system without compromising on quality.

Component condition and service application

The offered harness is a used component, making it an attractive cost-effective alternative while maintaining the manufacturer's original specifications. It is suitable for both professional service centres and workshops specializing in the Mercedes brand, where compatibility with the factory installation and the ability to perform quick, modification-free assembly are paramount.

Before installation, it is recommended to perform a standard verification of the connector condition and the correct routing of the wires in the vehicle to ensure long-term and stable operation of the AUX system in the centre console.

If you are planning a comprehensive repair or upgrade of the centre console area in your Mercedes and need other components from the same group, such as power sockets, cigarette lighter modules, or additional multimedia connectors, check the available parts in the Mercedes car sockets and cigarette lighters category.

To better understand why original used components for premium cars are currently so popular among informed drivers and workshops, it is worth reading the article: Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend.