2003 Mitsubishi Diamante Speaker Sizes

The 2003 Mitsubishi Diamante factory audio system includes dashboard and front door panel locations that accommodate 1 inch units, while front door panel and rear deck lid locations accept 6.5 inch speakers. A 1 inch speaker size corresponds to tweeter components. Midbass and full-range units serve as a replacement upgrade.

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

Speaker Details by Location
Location Size Type Notes
Dashboard 1 Tweeter
  • Requires panel 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 Deck Lid 6.5 Midbass / Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

2003 Mitsubishi Diamante Speaker Replacement Summary

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

Replacement difficulty:

Low: 3 Medium: 1 High: 0

Replacement priority:

High: 2 Medium: 2 Low: 0

2003 Mitsubishi Diamante 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 factory audio configuration in the 2003 Mitsubishi Diamante includes 1-inch tweeters positioned in both the dashboard and front door panels, which handle higher frequency reproduction separately from the larger drivers.
  • Component speaker systems may integrate more naturally with this configuration since the vehicle already separates tweeters from midbass duties in the front soundstage, potentially simplifying aftermarket upgrades.
  • The 6.5-inch openings in the front door panels and rear deck lid accept either midbass drivers designed for component systems or full-range coaxial speakers that combine multiple frequency ranges in a single unit.
  • Upgrading the front door 6.5-inch speakers tends to produce more noticeable improvements in overall sound quality compared to rear speakers, as front staging typically dominates the listening experience in automotive environments.
  • The double DIN radio compatibility alongside single DIN options provides flexibility for head unit upgrades that might better drive aftermarket speakers with increased power output or enhanced signal processing capabilities.
  • Replacing the existing tweeters could prove challenging depending on mounting configurations, whereas the 6.5-inch locations typically offer more straightforward installation paths for aftermarket components.
  • Matching sensitivity ratings between replacement speakers and the factory head unit power output helps maintain adequate volume levels without requiring additional amplification in the audio system.