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To get a detailed description of each category and it's available options, to help you make the correct selection.
Retain Steering Wheel Controls
Keep your factory steering wheel controls with Metra's ASWC-1. Easy to install with an aftermarket radio, easy to program with our auto detect feature.
Replace Factory Radio
Remove that featureless factory radio and install an aftermarket radio with Axxess's radio replacement interfaces and harnesses.
Add Remote Start
Cut down in installation time with Axxess's remote start vehicle specific harnesses.
Add Cameras to Factory Radio
Stay aware of your surroundings and improve safety by adding cameras to your existing factory screen.
Add Amp to Factory Radio
Get the sound quality you're looking for by adding aftermarket amplifiers to your factory radio with Axxess's Add-n-amp option.
Device Connection
Stay safe and connected while driving by installing an Axxess connectivity interface and mobility products.
Digital Signal Processor
Upgrade your sound, keep your factory radio and retain your functions with our versatile digital signal processor.
Override Engine's STOP/START
Override Interface for Ford, Chrysler, Dodge, & JeepĀ®. Simple install to override or re-engage the stop engine feature!
< Back AX-MC90132


Mercedes CLS/E/SLK with MOST25 Amp, SWC Retention 2003-2008

USA MSRP: $627.00 USD

  • Provides accessory power
  • Designed for amplified models
  • Provides NAV outputs (parking brake, reverse, speed sense)
  • Retains audio controls on the steering wheel
  • Retains balance
  • Micro B USB updatable


  • CLS 2006-2011 (C219)
  • E-Class 2003-2008 (W211)*
  • SLK 2005-2011 (R171)*

*There are two different radio possibilities for the E-Class and SLK in this year range, please see below for ways to distinguish between which interface kit you will need.

*Vehicles equipped with Command NTG1 will use the AX-MC90132. NTG1 radios will be built by Harman/Becker and have the 6-Disc Changer separate from the radio, if equipped with a SINGLE-disc player, it will be built in to the radio. They will typically have buttons on the sides of, and below the radio screen, also the optical light will come from the fiber cable when removed.

*Vehicles equipped with Command NTG2.5 will use the AX-MC90082. NTG2.5 radios will be built by Alpine, and have the 6-Disc changer built in to the radio. They will not have buttons directly below the radio screen, and the optical light will come from the radio when the fiber cable is removed.