1999 Ford Expedition Speaker Sizes

Front door panel and rear door panel accommodate 6x8 inch speakers within the 1999 Ford Expedition factory audio system, while rear side panel accepts an 8 inch speaker size. Full-range and woofer are compatible speaker types for audio replacement or upgrade.

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

Speaker Details by Location
Location Size Type Notes
Front Door Panel 6x8 Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6x8 Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low
Rear Side Panel 8 Woofer
  • Requires trim removal
  • Medium replacement priority
  • Replacement difficulty: medium

1999 Ford Expedition Speaker Replacement Summary

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

Replacement difficulty:

Low: 2 Medium: 1 High: 0

Replacement priority:

High: 1 Medium: 1 Low: 1

1999 Ford Expedition 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 1999 Ford Expedition uses 6x8 inch full-range speakers in both front and rear door panels, suggesting a consistent audio platform across the primary listening positions.
  • Full-range speakers in the door locations indicate these units handle both mid-range frequencies and higher tones without requiring separate tweeters in the factory configuration.
  • The rear side panel position accommodates an 8 inch woofer, which focuses on lower frequency reproduction to complement the door-mounted full-range units.
  • Replacing the door panel speakers with aftermarket 6x8 inch components could potentially improve clarity in vocal and instrumental ranges, as full-range designs in this size typically emphasize midrange performance.
  • The dedicated woofer location in the rear side panel provides bass reinforcement that may allow the door speakers to operate more efficiently in their intended frequency range.
  • Aftermarket component speaker systems with separate crossovers might offer enhanced sound staging compared to the factory full-range configuration, particularly in the door positions.
  • The 6x8 inch form factor offers reasonable surface area for sound dispersion while fitting within typical door panel constraints in vehicles of this era.
  • Upgrading the rear side panel woofer could increase low-frequency output, though compatibility with the 8 inch mounting location would need verification before installation.