1990 Audi 100 Speaker Sizes

A speaker size chart for the 1990 Audi 100 outlines factory audio system specifications and speaker locations. Information covers replacement and upgrade options for dashboard and rear deck lid positions. Aftermarket speakers can be installed in these factory locations to improve audio quality. The chart provides specifications for matching compatible speaker sizes to original equipment positions within the vehicle's sound 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
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

1990 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

1990 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 1990 Audi 100 dashboard positions accommodate 4-inch midrange speakers, which typically handle vocal frequencies and instrumental clarity in the middle of the audio spectrum.
  • Rear deck lid locations support 6.5-inch speakers that can function as either midbass drivers or full-range units, offering flexibility in system configuration.
  • Replacing the dashboard midrange speakers could enhance vocal reproduction and detail in the front soundstage.
  • Midbass-capable speakers in the rear deck positions would strengthen lower frequency response without requiring a subwoofer installation.
  • Full-range speakers in the 6.5-inch positions would provide broader frequency coverage from a single driver design.
  • The single DIN radio opening allows for aftermarket head unit upgrades while maintaining compatibility with standard sizing.
  • Component speaker systems with separate tweeters might complement the 4-inch midrange positions for improved high-frequency extension.
  • The rear deck installation could benefit from speakers with higher sensitivity ratings to maximize output from factory amplification.