1987 Mercury Topaz Speaker Sizes

The 1987 Mercury Topaz factory audio system locations include a dashboard that accepts 3.5 inch speakers, a front door panel which can accommodate 6.5 inch speakers, and a rear deck lid supporting 6x8 inch units establishing the designated 3.5 inch speaker size. Available options for audio replacement and upgrade consist of full-range and midbass configurations.

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

Speaker Details by Location
Location Size Type Notes
Dashboard 3.5 Full-Range
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 6x8 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1987 Mercury Topaz 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: 2 Low: 0

1987 Mercury Topaz 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 front door panels in the 1987 Mercury Topaz may be considered a priority location for upgrades, as the 6.5 inch opening accommodates both midbass drivers and full-range speakers, potentially offering more substantial sonic output than the smaller dashboard or rear locations.
  • The dashboard position accepts 3.5 inch full-range speakers, which typically handle mid and high frequencies but may lack the cone area needed for robust low-frequency reproduction.
  • Rear deck speakers use a 6x8 inch oval configuration rather than round drivers, which can present slightly different mounting considerations when selecting replacement units.
  • Full-range speakers are compatible across all three factory locations, suggesting the original audio system likely relied on these single-driver solutions rather than separate component configurations.
  • The front door opening's compatibility with dedicated midbass drivers suggests this location could support a component speaker system where midbass units handle lower frequencies while separate tweeters reproduce highs.
  • The single DIN radio opening maintains the standard 2-inch height specification common to aftermarket head units, potentially simplifying stereo replacement without requiring dash modifications.
  • Sound staging might shift toward the front of the cabin when door speakers are upgraded, as the 6.5 inch drivers can typically produce a wider frequency range with greater authority than the 3.5 inch dashboard units.
  • Oval speakers in the rear deck may benefit from aftermarket options specifically designed for 6x8 inch openings, though some installers use adapter plates to fit round 6.5 inch drivers in these locations.