1989 Audi 100 Speaker Sizes

This 1989 Audi 100 speaker size chart provides factory specifications for dashboard and rear deck lid speaker locations. Information includes replacement audio system details for drivers seeking to upgrade from factory speakers to aftermarket options. The chart contains specifications needed for audio system modifications in the vehicle.

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Speaker Details by Location
Location Size Type Notes
Dashboard 4 Midrange
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Deck Lid 6.5 Midbass / Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1989 Audi 100 Speaker Replacement Summary

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

Replacement difficulty:

Low: 1 Medium: 1 High: 0

Replacement priority:

High: 0 Medium: 2 Low: 0

1989 Audi 100 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 1989 Audi 100 front dashboard positions accommodate 4-inch midrange speakers, which typically handle vocal frequencies and instrumental mid-tones rather than deep bass or extreme high frequencies.
  • Rear deck lid locations support 6.5-inch speakers with compatibility for both midbass and full-range driver types, offering flexibility in audio configuration based on listening preferences.
  • Replacing dashboard speakers may present installation challenges due to the 4-inch form factor limitation, which restricts available aftermarket options compared to more common 3.5-inch or 5.25-inch sizes.
  • The midrange-only classification for dashboard speakers suggests these locations likely work in conjunction with factory tweeters or other components to reproduce the complete frequency spectrum.
  • Rear deck lid speakers could benefit from midbass-focused replacements if door-mounted woofers or subwoofers handle low-frequency reproduction elsewhere in the audio system.
  • Full-range speakers in the rear deck positions would need to reproduce bass, midrange, and treble frequencies without additional component support, which may compromise clarity in certain frequency ranges.
  • The single DIN radio opening provides standard aftermarket head unit compatibility, potentially enabling amplified outputs or signal processing capabilities that factory speakers may not fully utilize.
  • Upgrading rear speakers to higher-sensitivity models could improve output volume without requiring additional amplification, given that factory power ratings tend to be conservative.