2007 Mercedes-Benz GL320 Speaker Sizes

The 2007 Mercedes-Benz GL320 factory audio system features specific mounting locations that accept various audio components. Center dash accommodates a 3.5 inch speaker size. Front door panel and rear door panel accommodate 6.5 inch speakers, while front door panel, rear door panel, and rear roof accept 1 inch units. Cargo area supports an 8 inch subwoofer. Compatible speaker types for replacement and upgrade applications include tweeters, full-range, midbass, and subwoofers.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
Cargo Area 8 Subwoofer
  • Ample working space
  • Medium replacement priority
  • Replacement difficulty: low
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 1 Tweeter
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 1 Tweeter
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low
Rear Roof 1 Tweeter
  • Requires headliner removal
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high

2007 Mercedes-Benz GL320 Speaker Replacement Summary

7 total positions
5 easy to replace
3 high priority
1 professional only

Replacement difficulty:

Low: 5 Medium: 1 High: 1

Replacement priority:

High: 3 Medium: 3 Low: 1

2007 Mercedes-Benz GL320 Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN or Double DIN 7"×2" or 7"×4" 180×50 or 180×100 Vehicle supports both radio sizes
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 2007 Mercedes-Benz GL320 accommodates multiple speaker sizes across seven locations, with three distinct 1-inch tweeter positions distributed between the front doors, rear doors, and rear roof area.
  • A 3.5-inch full-range speaker fits in the center dash position, which may serve as a dedicated center channel for enhanced vocal clarity and stereo imaging.
  • Both front and rear door panels accept 6.5-inch speakers that can function as either midbass drivers or full-range units, providing flexibility in component or coaxial speaker selection.
  • The cargo area contains an 8-inch subwoofer location, suggesting that low-frequency reproduction was incorporated into the factory audio design.
  • Replacing the door panel speakers would likely address midrange frequencies and bass response, while the tweeter locations handle higher frequencies separately in what appears to be a multi-way speaker configuration.
  • Component speaker systems with separate tweeters and woofers might integrate more naturally with the existing tweeter locations than coaxial designs, potentially reducing redundancy in the high-frequency range.
  • The radio opening accepts both single DIN and double DIN head units, allowing for aftermarket receiver upgrades without modification to the dash structure.
  • Sound improvement efforts might prioritize the 6.5-inch door locations first, as these handle the critical midrange frequencies where most vocal and instrumental content resides.