Axxess AXTC-MB3 Data Interface with SWC for Select Mercedes Vehicles

Axxess AXTC-MB3 is a vehicle-specific Total Control data interface with built-in steering wheel control retention for select 2016-2021 Mercedes vehicles. It is used when replacing the factory radio with an aftermarket radio while retaining supported vehicle functions that may otherwise be lost.

Key Features

• Built-in steering wheel control interface with Axxess auto-detect technology
• Provides accessory power where supported by the vehicle application
• Provides NAV outputs for parking brake, reverse, and speed sense
• Allows dual assignment of steering wheel control buttons
• Designed to work with major aftermarket radio brands
• Micro-B USB updatable for supported firmware updates
• Designed for non-amplified models
• Provides 12-volt illumination output

System / Wiring Notes

• Factory feature retention varies by vehicle trim, factory radio, factory amplifier, and original equipment
• Retained steering wheel controls require proper radio-brand selection and interface programming when applicable
• Additional dash kit, antenna adapter, camera adapter, USB adapter, or amplifier integration parts may be required for a complete radio installation
• Verify exact vehicle year, model, trim, factory audio package, and RPO/system codes before purchase
• Designed for non-amplified models only.

Vehicle Compatibility

Installation Notes

• Confirm exact vehicle compatibility and factory audio system before installation
• Read the current Axxess instructions before wiring or programming the interface
• Professional installation is recommended for proper radio integration, steering wheel control setup, and retained-feature operation

What’s in the Box

• Axxess AXTC-MB3 data interface and vehicle-specific harnessing
• Installation components as supplied by Axxess

Technical Specifications

• Brand: Axxess
• Model: AXTC-MB3
• Product Type: Radio replacement data interface with steering wheel control retention
• Application: select 2016-2021 Mercedes vehicles
• Compatibility Type: Vehicle-specific
• Audio System Support: Non-amplified models
• Update Method: Micro-B USB

Identifiers & Packaging

• MPN: AXTC-MB3
• UPC: 86429434121
• Sold As: Each
• Included Components: Data interface and vehicle-specific harnessing

Why Buy From MCOR Automotive

• Authorized retailer for the brands we sell
• Specialists in vehicle audio integration, radio replacement parts, and installation accessories
• 22+ years of professional automotive electronics experience
• Expert support for compatibility verification and proper setup