1979 Mercury Marquis Speaker Sizes
The 1979 Mercury Marquis speaker size chart provides factory specifications for replacement and aftermarket audio components. Information includes speaker locations within the vehicle, such as dashboard, front door panel, and rear deck lid positions. Data covers factory speaker sizes suitable for system upgrade applications and aftermarket audio installations.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 5.25 | Full-Range |
|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1979 Mercury Marquis Speaker Replacement Summary
3
total positions
2
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 1 High: 0Replacement priority:
High: 1 Medium: 2 Low: 01979 Mercury Marquis 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 1979 Mercury Marquis features three distinct speaker locations with varying size requirements, suggesting a staged approach to audio upgrades might be considered based on listening priorities and budget constraints.
- Dashboard and front door panel locations share the same 5.25 inch size specification, potentially allowing for matched component selection when seeking tonal consistency across the front soundstage.
- Front door panel positions accept either midbass or full-range speaker types, offering flexibility in system design depending on whether a component or coaxial speaker arrangement is preferred.
- The rear deck lid accommodates 6x9 inch speakers in full-range configuration, which typically provide broader frequency response and higher output capability compared to the smaller 5.25 inch locations.
- Replacing rear deck speakers first could yield noticeable bass improvement due to the larger cone area of 6x9 inch drivers, though front stage imaging might benefit more from prioritizing dashboard and door panel upgrades.
- Full-range compatibility across all positions indicates the factory system likely operated without separate amplification for different frequency ranges, suggesting aftermarket speakers with efficient sensitivity ratings might be advantageous.
- The single DIN radio specification provides standard head unit replacement options, which could serve as a foundation for improved source quality before or alongside speaker upgrades.
- Door panel midbass capability suggests these locations could support a component speaker system where separate tweeters handle higher frequencies while door-mounted drivers focus on midrange and lower frequencies.