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Scosche MZ08SR Wiring Interface

Connect a new car stereo in select 2012-14 Mercedes-Benz C-Class models without factory amp

Item # 142MZ08SR

Find what Fits your vehicle

Discontinued item

Item # 142MZ08SR

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About the Scosche MZ08SR Wiring Interface

Bob Bihlmayer

Scosche MZ08SR 

You want to upgrade the radio in your 2012-14 Mercedes-Benz C-Class, but you don't want to lose those handy steering wheel audio controls. This MZ08SR interface from Scosche retains your steering wheel controls, along with all warning and safety chimes. It also provides the 12-volt switched accessory output (which was absent from the factory harness), as well as providing the connections you'll need to install a navigation receiver, including reverse, speed pulse, and parking brake. Warranty: 1 year.

What's in the box:

  • Radio replacement interface module
  • Wiring harness (inline 15A fuse)
  • SWC harness
  • Installation Instructions

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More details on the Scosche MZ08SR Wiring Interface

Stacey B.

Product Research


Vehicle Compatibility: Vehicle Compatibility: The Scosche MZ08SR radio replacement interface module is designed specifically for 2012-2014 Mercedes C Class vehicles.

+12V Accessory Output: In these Mercedes vehicles, there is no 12-volt accessory wire in the factory harness, which would require the installer to run an accessory wire to the fuse box or underneath the steering column when installing an aftermarket radio. However, the MZ08SR is designed to provide a +12V accessory switched accessory output to make installation a lot simpler.

Steering Wheel Controls: The MZ08SR 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 MZ08SR 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.

16-Pin Harness
Yellow (w/ inline 15A fuse) Permanent 12V Supply
Black Ground
Blue (x 2) +12V Power Antenna
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 -
14-Pin Harness
Yellow +12 Volt Constant
Red +12 Volt Accessory
Black Ground
Orange Illumination Output (+)
 Green Parking Brake (-)
Purple/white Reverse Output (+)
Pink VSS (Vehicle Speed Sense)
12-Pin Harness
Male 3.5mm Connector SWC Connector
Brown SWC Key 1
Gray SWC Key 2
Black SWC Ground

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