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Two black plastic speaker mounting adapters with circular cutouts and multiple screw holes

METRA

METRA 82-3021 Speaker Adapters 6-6.75in Front Door Pair Chevrolet Trailblazer GMC Envoy 2002-2009

SKU CH-DD6S-9NY5Q MPN 82-3021

Mounting adapters fit 6 to 6.75 inch speakers into the front doors of 2002 to 2009 Chevrolet Trailblazer and GMC Envoy models

  • TypeCable Terminals & Clips
  • Fits 6 – 6.75 inch speakers for a secure front-door mount
  • Designed for Chevrolet Trailblazer 2002 – 2009 front doors
  • Compatible with GMC Envoy 2002 – 2009 front-door openings
  • Also suits Oldsmobile Bravada 2002 – 2004 front-door installation
  • Supplied as a pair to upgrade both front doors at once

Speaker Adapters for Trailblazer and Envoy

The Metra 82-3021 mounting adapters fit Chevrolet Trailblazer models from 2002 to 2009, GMC Envoy models from 2002 to 2009 and Oldsmobile Bravada models from 2002 to 2004. They are designed for the front door speaker locations and are sold as a pair for stereo installation.

Build quality and connector implications

Each adapter is moulded to accept speakers measuring 6 to 6.75 inches and aligns with the factory door openings. The design uses the original mounting points so no cutting or drilling is required during installation. Wiring connects to the vehicle harness through the supplied terminals and clips.

Compatibility checks before ordering

Verify that your vehicle matches the listed years and front door positions before purchase. Confirm that the replacement speakers fall within the 6 to 6.75 inch range supported by the adapter. Ensure you are replacing a pair of front door units, as the kit includes two adapters only.

Highlights

  • Fits 6 – 6.75 inch speakers for a secure front-door mount
  • Designed for Chevrolet Trailblazer 2002 – 2009 front doors
  • Compatible with GMC Envoy 2002 – 2009 front-door openings
  • Also suits Oldsmobile Bravada 2002 – 2004 front-door installation
  • Supplied as a pair to upgrade both front doors at once

Specifications

BrandMetra
Model82-3021
TypeCable Terminals & Clips

Questions about this item

What speaker size range does the 82-3021 adapter accept?

The 82-3021 adapter accepts speakers from 6 to 6.75 inches in diameter for a direct fit.

Which doors and vehicles does this pair fit?

This pair mounts in the front doors of the Chevrolet Trailblazer 2002–2009, GMC Envoy 2002–2009 and Oldsmobile Bravada 2002–2004.

How do I install the adapter and what step is often missed?

Remove the factory speaker, bolt the adapter to the door using the original holes, then screw the new speaker to the adapter; the step often missed is reusing the factory bolts instead of supplying new hardware.

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