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Scosche MZ07SR Wiring Interface

Replace the car stereo while retaining steering wheel controls in select 2006-11 Mercedes-Benz M-Class vehicles

Item # 142MZ07SR

Find what Fits your vehicle

Discontinued item

Item # 142MZ07SR

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About the Scosche MZ07SR Wiring Interface

Bob Bihlmayer

Scosche MZ07SR 

You want to upgrade the radio in your 2005-15 Mercedes-Benz, but you don't want to lose important factory features. The MZ07AR 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: 60 days.

What's in the box:

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

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More details on the Scosche MZ07SR Wiring Interface

Stacey B.

Product Research


Vehicle Compatibility: Vehicle Compatibility: The Scosche MZ07SR radio replacement interface module is designed specifically for select Mercedes vehicles with factory non-amplified audio systems that feature a Fakra-style connector.

Make Model Year
Mercedes C Class 2005-2007
R Class 2006-2013
ML 2006-2011
Sprinter 2007-2015

+12V Accessory Output: In these Mercedes vehicles, there is no 12-volt accessory wire in the factory harness, which requires the installer to run an accessory wire to the fuse box or underneath the steering column when installing an aftermarket radio. The MZ07SR is designed to provide a +12V accessory switched accessory output.

Steering Wheel Controls: The MZ07SR also includes a steering wheel control output, which allows you to keep your vehicle's factory steering wheel controls when replacing the factory radio with an aftermarket head unit that features a SWC input. No additional interface or programming is necessary.

Navigation Outputs: The MZ07SR provides navigation outputs for reverse, vehicle speed pulse, and parking brake - making installation of aftermarket navigation receivers much simpler and less time consuming.

Wiring Color Chart: The following wires of the included wiring harness will need to be hardwired to your new aftermarket stereo's harness.

Wire Color Function
Yellow +12 Volt Constant
Black Ground
Red +12 Volt Accessory
Blue Amp Turn-On
Orange Illumination Output (+)
White Left Front Speaker +
White/black Left Front Speaker -
Gray Right Front Speaker +
Gray/black Right Front Speaker -
Green Left Rear Speaker +
Green/black Left Rear Speaker -
Purple Right Rear Speaker +
Purple/black Right Rear Speaker -
Green (w/ bullet connector) Parking Brake
Violet/white Reverse Output (+)
Pink VSS (vehicle speed sense)
Yellow/black Phone Mute

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