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Metra 82-8701 Speaker Mounting Brackets

Install 6" to 6-3/4" speakers in select 2008-15 Mercedes-Benz vehicles

Item # 120828701

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About the Metra 82-8701 Speaker Mounting Brackets

Metra 82-8701

Metra's 82-8701 brackets will allow you to install 6" to 6-3/4" speakers in the factory speaker openings of select 2008-15 Mercedes-Benz vehicles. Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if these adapters are compatible with your vehicle. Warranty: 1 year.

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More details on the Metra 82-8701 Speaker Mounting Brackets

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Overview: As of 1/15/18, the 82-8701 is compatible with select 2008-2015 Mercedes models. The bracket is designed to allow easy replacement of the factory speakers with select aftermarket 6-1/2 or 6-3/4 speakers. (Please enter your vehicle information to confirm fit.)

6-3/4 Speakers: For a 6-3/4 speaker to fit in the opening of this bracket, the tabs around the inner speaker opening need to be removed. They are scored along the bottom for easy removal, but still may require pliers and a file.

6-1/2 Speakers: 6-1/2 speakers with a 3-hole bolt pattern, Ford 4-hole bolt pattern, or symmetrical 4-hole bolt pattern can be mounted using the tabs around the inner speaker opening of this bracket.

5-1/4 Speakers: While a 5-1/4 speaker will mount easily in this bracket given the bolt pattern, the frame of a typical 5-1/4 is approximately 1/2" smaller than the opening in the bracket, making a 6-1/2 or 6-3/4 a better fit. When using a 5-1/4, a speaker baffle must also be used to seal the rear of the speaker.


  • Inner Diameter: 5.747" (not accounting for the inner tabs)
  • Height: 0.875"
  • Four-Hole Screw Spacing (6-3/4):
    • Perimeter: 4.249"-4.577"
    • Diagonal: 6.071"-6.402"
  • Three-Hole Screw Spacing (6-1/2): 4.538"-5.028"
  • Symmetrical Four-Hole Screw Spacing (6-1/2 or 5-1/4):
    • Perimeter: 3.676"-4.125"
    • Diagonal: 5.267"-5.792"
  • Ford Four-Hole Screw Spacing (6-1/2):
    • Minor Axis: 3.676"-4.125"
    • Major Axis: 4.538"-5.028"

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