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Scosche LMZ20 Wiring Interface Connect a new car stereo while retaining steering wheel controls in select 2006-11 Mercedes-Benz vehicles

Item # 142LMZ20

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Item # 142LMZ20

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About the Scosche LMZ20 Wiring Interface

Bob Bihlmayer

Scosche LMZ20 

You want to upgrade the radio in your 2006-11 Mercedes-Benz without the Harman Kardon factory amp, but you don't want to lose important factory features. The LMZ20 interface retains your steering wheel audio controls (if present) and your factory phone buttons, if you're installing a car stereo that supports those features. It also provides the 12-volt accessory output, as well as the connections needed for a car stereo with GPS, including reverse, speed pulse, and parking brake. Warranty: 1 year.

What's in the box:

  • Radio replacement interface module
  • Wiring harness
  • SWC harness
  • Installation Instructions

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More details on the Scosche LMZ20 Wiring Interface

Stacey B.
The Scosche LMZ20 Wiring Interface replaces these items:

Product Research


Vehicle Compatibility: The Scosche Link Series LMZ20 is a radio replacement & steering wheel control interface for select 2005-up Mercedes Benz vehicles featuring a factory installed "Audio 20" head unit with a Quadlock (16-pin) connector, and without a factory amplifier.

Make Model Year
Mercedes Benz C-Class (W203) 2005-2007
CLK (W209) 2005-2009
GL-Class (X164) 2006-2011
Metris 2016-up
ML Class (W164) 2006-2011
R-Class (W251) 2006-2015
SLK (R171) 2008-2011
Sprinter (W901-905) 2007-2013

Built-In Steering Wheel Control: The LMZ20 retains your vehicle's steering wheel controls, including phone control buttons (when applicable), if you are connecting an aftermarket Alpine, Clarion, Dual, JVC, Kenwood, Pioneer, or Sony head unit with a steering wheel control input. *See the Installation Instructions regarding connection.

Provided Outputs: The LMZ20 provides a data-bus driven +12V/10A Accessory output, an analog +12V Illumination output, an analog +12V Reverse Trigger output, an analog Vehicle Speed pulse output, and an analog Parking Brake ground output.

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