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Metra 82-7501 Speaker Mounting Brackets

Install 6", 6-1/2", or 6-3/4" speakers in select 2013-up Mazda vehicles

Item # 120827501

Find what Fits your vehicle

Item # 120827501

In stock

About the Metra 82-7501 Speaker Mounting Brackets

Metra 82-7501

Metra's 82-7501 brackets will allow you to install select 6", 6-1/2", or 6-3/4" speakers in the factory speaker openings of select 2013-up Mazda vehicles. Please enter your vehicle information or call an Advisor at 1-888-955-6000 to confirm that these adapters are compatible with your vehicle. Warranty: 1 year.

What's in the box:

MFR #82-7501

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More details on the Metra 82-7501 Speaker Mounting Brackets

Pat M.

Product Research


Overview: The 82-7501 is designed to allow easy replacement of factory speakers with select aftermarket 6-1/2 and 6-3/4 speakers. Please enter your vehicle information to confirm fit. 5-1/4s will also fit, but not well, so they are not recommended.

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 the 3-hole or 4-hole bolt pattern can be mounted using the tabs around the inner speaker opening of this bracket (if the hole spacing matches).

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.


  • Outer Diameter: 8"
  • Inner Diameter: 5.75" (not accounting for the inner tabs)
  • Height: 1.8"
  • Screw Hole Spacing:
    • Three-Hole (6-1/2):
      • Perimeter: 4.535"-5.035"
    • Symmetrical Four-Hole (6-1/2 and 5-1/4):
      • Perimeter: 3.675"-4.134"
      • Diagonal: 5.258"-5.792"
    • Ford Four-Hole (6-1/2):
      • Minor Axis: 3.675"-4.134"
      • Major Axis: 4.535"-5.035"
    • Four-Hole Spacing (6-3/4):
      • Perimeter: 4.286"-4.550"
      • Diagonal: 6.104"-6.377"

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