1987 Cadillac Fleetwood Speaker Sizes

The 1987 Cadillac Fleetwood speaker size chart details factory audio specifications for aftermarket replacement or upgrade installations. Information covers speaker locations in the front door panel and rear deck lid positions. This reference provides essential specifications for matching aftermarket components to factory speaker openings in the audio system.

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Speaker Details by Location
Location Size Type Notes
Front Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 6x9 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1987 Cadillac Fleetwood Speaker Replacement Summary

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

Replacement difficulty:

Low: 2 Medium: 0 High: 0

Replacement priority:

High: 1 Medium: 1 Low: 0

1987 Cadillac Fleetwood 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 1987 Cadillac Fleetwood contains two distinct speaker locations with different size specifications and mounting configurations.
  • Front door panel speakers utilize a 5.25-inch mounting configuration that accommodates either midbass or full-range driver types.
  • The rear deck lid positions accept 6x9-inch oval speakers designed for full-range audio reproduction.
  • Full-range speaker types can handle broader frequency ranges compared to midbass drivers, which typically focus on mid and lower frequencies.
  • The oval 6x9-inch format generally provides greater cone surface area than round 5.25-inch speakers, potentially contributing to increased low-frequency output.
  • Replacing the rear deck lid speakers might produce more noticeable bass improvements due to the larger cone surface area available in the 6x9-inch format.
  • Midbass drivers installed in the front door panels would emphasize midrange punch and vocal clarity rather than extending deep into subwoofer territory.
  • The single DIN radio opening provides standard aftermarket head unit compatibility without requiring additional mounting adapters for size conversion.
  • Upgrading to full-range speakers in the front door positions would eliminate the need for separate tweeters if high-frequency extension is desired.
  • The different speaker sizes between front and rear positions suggest a factory audio design that distributed frequency responsibilities across multiple locations.