1999 GMC Safari Speaker Sizes

The 1999 GMC Safari speaker size chart provides factory specifications and locations for the audio system components. Information covers replacement speaker dimensions for front door panel, d-pillar, and tail gate positions. Aftermarket upgrade options are available for each location within the vehicle's factory audio system.

As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.

Speaker Details by Location
Location Size Type Notes
D-Pillar 4 Midrange
  • Extremely difficult access
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high
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
Tail Gate 6.5 Midbass / Full-Range
  • Access through rear opening
  • Medium replacement priority
  • Replacement difficulty: low

1999 GMC Safari Speaker Replacement Summary

4 total positions
3 easy to replace
2 high priority
1 professional only

Replacement difficulty:

Low: 3 Medium: 0 High: 1

Replacement priority:

High: 2 Medium: 1 Low: 1

1999 GMC Safari Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN 7"×2" 180×50 Standard size for basic car radios with small display or no display
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 1999 GMC Safari utilizes a multi-location speaker configuration with different sizes serving distinct frequency ranges across the cabin.
  • Front door panels accommodate dual speaker positions with both 1-inch tweeter mounts and 6.5-inch midbass or full-range speaker locations, suggesting a component-style setup may have been intended in the factory design.
  • The D-pillar positions feature 4-inch midrange speakers, which typically handle vocal and mid-frequency content to fill the rear listening area.
  • Tailgate mounting locations accept 6.5-inch speakers in either midbass or full-range configurations, providing flexibility for rear audio coverage depending on system design.
  • Replacing the front door 6.5-inch speakers would likely yield the most noticeable improvement in overall sound quality, as these positions handle critical midrange frequencies and bass response in the primary listening zone.
  • The 1-inch tweeter positions allow for high-frequency extension when paired with aftermarket component speaker systems, though standalone tweeter replacement may provide only modest improvements without corresponding midbass upgrades.
  • D-pillar midrange speakers might benefit from replacement if rear-seat audio quality is a concern, though their contribution to front-seat listening is typically secondary.
  • Tailgate speakers face challenges with coupling and enclosure volume, which may limit their effectiveness compared to traditional door-mounted installations.
  • The single DIN radio opening provides compatibility with most aftermarket head units without requiring dash modification or adapter kits.