Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness AUX A0395453128

Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness AUX is an original electrical installation component, designed for factory retrofitting or repairing the audio system in this model. By adhering to Mercedes manufacturer specifications, it ensures a reliable AUX signal connection and stable operation of the multimedia system. This is a practical solution for users who want to restore full functionality to the AUX socket or perform repairs in accordance with factory standards.

Specifications and technical data

• SKU: A0395453128
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0395453128
• Substitutable numbers: A0395453128, A 039 545 31 28, ASZ
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle installation

The presented Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness AUX belongs to the group of components responsible for signal transmission in the audio system. It has been designed as part of the factory installation, which allows for maintaining the correct wiring topology and proper cooperation with vehicle modules. Properly routed wires and matched connectors minimize the risk of interference, signal interruptions, or compatibility issues.

Construction and technical advantages

The harness belongs to the Wires, looms, and connectors category, which means it is a strictly installation-related component, prepared for operation in the demanding environment of the vehicle's engine bay and interior cabin. The connectors used are factory-matched to the sockets in the Mercedes installation, so assembly is carried out without modifications, soldering, or the need for adapters. The appropriate length of the wires and their routing allow for aesthetic and safe placement along the original harness paths.

This type of solution is particularly beneficial when you want to:

• maintain the factory standard of the electrical installation,
• ensure a reliable AUX signal connection without additional adapters,
• facilitate easier audio system diagnostics in the future.

Component condition and assembly aspects

The product is offered as a used part, which in practice means it comes from disassembly and was previously used in a vehicle. Such installation components, provided the continuity of the wires and the efficiency of the connectors are maintained, work very well as a replacement in service repairs, allowing for cost savings compared to new OEM components. The AUX harness can be used both when replacing a damaged section of the installation and when restoring the additional audio input function.

Thanks to the factory terminations, assembly comes down to correctly plugging the connectors into the existing vehicle installation, without the need to interfere with the original electrical architecture. This solution promotes the clarity of the wiring and facilitates any potential future service work.

Application in service and audio modernization

The Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness AUX is particularly useful in situations where the factory wiring has been mechanically damaged, broken during previous repairs or modifications, or when the vehicle was retrofitted in a non-factory manner. Using an original harness allows for restoring the correct signal path, which translates into stable AUX input operation and better sound quality in the audio system.

This component will also prove useful in workshops specializing in the Mercedes brand, where the ability to perform quick and repeatable repairs of the installation in accordance with the manufacturer's documentation is important. Using an original harness reduces the risk of assembly errors and facilitates subsequent wire identification during diagnostics.

Expanding the installation in the wires and looms group

If you are planning a comprehensive repair or modernization of the electrical installation area in your Mercedes and need other elements from the same group, such as additional harnesses, wire sections, or dedicated connectors, check the available parts in the Mercedes wires, looms, and connectors category.

For users interested in the broader context of using original components in vehicles of various brands, including classic and newer designs, an article discussing the differences in construction and the importance of OEM parts may be helpful – you can find it here: Classic Mini vs modern MINI – how the construction has changed and which original Mini parts help preserve their character.