• Axxess AXEU-MOST25 MOST25 Amp Retention Interface for BMW and Mercedes-Benz
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Axxess

Axxess AXEU-MOST25 MOST25 Amp Retention Interface for BMW and Mercedes-Benz

Axxess AXEU-MOST25 MOST25 Amp Retention Interface for BMW and Mercedes-Benz

$436.99 USD
$436.99 USD
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Before you order

Buy with the right details confirmed

Review the application and system requirements

Confirm the size, power, connections, and included or separately required parts described on this page.

Axxess AXEU-MOST25 is a European MOST25 amplifier retention interface for select BMW and Mercedes-Benz vehicles. It is used as an add-on interface when replacing the factory radio and retaining compatible Harman Kardon amplified audio integration.

At a Glance

  • MOST25 amplifier retention interface for select European vehicles
  • Designed to retain the Harman Kardon amplifier in compatible BMW applications
  • Also supports listed Mercedes-Benz MOST25 applications
  • Retains balance audio function where supported
  • Micro-B USB updatable
  • Intended for use with compatible Axxess interfaces and vehicle-specific installation parts

System / Wiring Notes

  • This is an add-on amplifier retention interface, not a complete stand-alone dash kit or radio replacement package
  • Factory MOST25 system, amplifier type, and compatible Axxess interface must be verified before purchase
  • Retained audio functions depend on the factory system and the aftermarket radio installation

Exact Vehicle Compatibility

Find your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering.

Make Model Years Factory Equipment / Qualifier Application
BMW 1 Series 2010-2020 — Factory-amplifier turn-on interface
BMW 1 Series 2014-2020 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 2 Series 2014 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 2 Series 2014-2020 — Factory-amplifier turn-on interface
BMW 2 Series 2017-2020 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 3 Series 2007-2018 — Factory-amplifier turn-on interface
BMW 3 Series 2017-2019 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 4 Series 2014-2020 — Factory-amplifier turn-on interface
BMW 4 Series 2017-2020 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 5 Series 2010-2016 — Factory-amplifier turn-on interface
BMW 5 Series, ALPINA B5 2011-2016 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 6 Series 2004-2010 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 6 Series 2010-2015 — Factory-amplifier turn-on interface
BMW 6 Series 2012-2019 Factory amplified audio system Radio-replacement data interface for amplified system
BMW 7 Series 2010-2015 — Factory-amplifier turn-on interface
BMW 7 Series, ALPINA B7 2009-2015 Factory amplified audio system Radio-replacement data interface for amplified system
BMW X1 2013-2015 Factory amplified audio system Radio-replacement data interface for amplified system
BMW X1 2016-2020 Factory amplified audio system Radio-replacement data interface for amplified system
BMW X3 2004-2010 Without factory navigation; Factory amplified audio system Radio-replacement data interface for amplified system
BMW X3 2010-2018 — Factory-amplifier turn-on interface
BMW X3 2011-2017 Factory amplified audio system Radio-replacement data interface for amplified system
BMW X3, X3 M, X3 M40i 2018-2020 Factory amplified audio system Radio-replacement data interface for amplified system
BMW X4 2015-2018 — Factory-amplifier turn-on interface
BMW X4, X4 M40i 2015-2018 Factory amplified audio system Radio-replacement data interface for amplified system
BMW X5 2014-2018 — Factory-amplifier turn-on interface
BMW X5, X5 M 2014-2018 Factory amplified audio system Radio-replacement data interface for amplified system
BMW X6 2008-2014 E71 Factory-amplifier turn-on interface
BMW X6 2008-2014 E71 world model Factory-amplifier turn-on interface
BMW X6 2015-2019 — Factory-amplifier turn-on interface
Mercedes C Class 2008-2014 — Factory-amplifier turn-on interface
Mercedes C-Class 2008-2011 Factory amplified audio system Radio-replacement data interface for amplified system
Mercedes C-Class 2012-2015 Factory amplified audio system Radio-replacement data interface for amplified system
Mercedes CLA-Class 2015-2019 Factory amplified audio system Radio-replacement data interface for amplified system
Mercedes CLK Class 2008-2009 — Factory-amplifier turn-on interface
Mercedes CLK-Class 2005-2009 Factory amplified audio system Radio-replacement data interface for amplified system
Mercedes CLS 2008-2015 — Factory-amplifier turn-on interface
Mercedes E Class 2008-2013 — Factory-amplifier turn-on interface
Mercedes E Class 2014-2015 — Factory-amplifier turn-on interface
Mercedes E-Class 2009 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes E-Class 2010-2013 Convertible, Coupe; Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes E-Class 2010-2013 Sedan, Wagon; Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes E-Class 2014-2016 Factory amplified audio system Radio-replacement data interface for amplified system
Mercedes G Class 2008-2015 — Factory-amplifier turn-on interface
Mercedes G-Class 2007-2008 Factory amplified audio system Radio-replacement data interface for amplified system
Mercedes G-Class 2009-2012 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes G-Class 2013-2018 Factory amplified audio system Radio-replacement data interface for amplified system
Mercedes GL Class 2008-2015 — Factory-amplifier turn-on interface
Mercedes GL-Class 2007-2008 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes GL-Class 2009-2012 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes GL-Class 2013-2015 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes GLK Class 2009-2015 — Factory-amplifier turn-on interface
Mercedes GLK-Class 2010-2012 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes GLK-Class 2013-2015 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes ML Class 2008-2015 — Factory-amplifier turn-on interface
Mercedes ML-Class 2006-2008 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes ML-Class 2009-2011 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes ML-Class 2012-2015 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes R Class 2008-2013 — Factory-amplifier turn-on interface
Mercedes R-Class 2006-2008 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes R-Class 2009-2011 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes SL Class 2008-2013 — Factory-amplifier turn-on interface
Mercedes SL-Class 2005-2008 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes SL-Class 2009-2012 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes SLK Class 2008-2015 — Factory-amplifier turn-on interface
Mercedes SLK-Class 2005-2008 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes SLK-Class 2009-2011 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system
Mercedes SLK-Class 2012-2015 Factory amplified audio system; Refer to the current Axxess application chart for additional interface choices. Radio-replacement data interface for amplified system

Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.

Installation Notes

  • Confirm exact vehicle year, model, trim level, factory radio system, and option codes before installation
  • Additional installation parts such as a dash kit, antenna adapter, steering wheel control harness, or radio-specific adapter may be required
  • Professional installation is recommended for best results
  • Check current Axxess instructions before installation and update firmware when required

What’s in the Box

  • Axxess AXEU-MOST25 MOST25 amplifier retention interface
  • Vehicle-specific harnessing as supplied by Axxess

Technical Specifications

  • Brand: Axxess
  • Model: AXEU-MOST25
  • Product Type: MOST25 amplifier retention interface
  • Application: Select BMW and Mercedes-Benz MOST25 amplified systems
  • Compatibility Type: Vehicle-specific
  • Update Method: Micro-B USB

Identifiers & Packaging

  • MPN: AXEU-MOST25
  • UPC: '086429392193
  • Sold As: Each
  • Included Components: MOST25 amplifier retention interface and 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
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