1985 Plymouth Horizon Speaker Sizes
The 1985 Plymouth Horizon speaker size chart provides factory specifications for audio system replacement components. Information covers speaker locations in front and rear door panels. Data includes dimensions for aftermarket speakers compatible with factory mounting positions. Details support audio system upgrade planning and aftermarket component installation in door panel locations.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Door Panel | 6x9 | Full-Range |
|
1985 Plymouth Horizon Speaker Replacement Summary
2
total positions
2
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 0 High: 0Replacement priority:
High: 1 Medium: 1 Low: 01985 Plymouth Horizon 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 1985 Plymouth Horizon accommodate 5.25-inch speakers, which can be replaced with either midbass drivers or full-range units depending on the desired audio configuration and whether a separate tweeter is planned.
- Rear door panel positions accept 6x9-inch full-range speakers, offering a larger cone area that may contribute to enhanced bass response and overall output compared to the front locations.
- The size difference between front and rear speaker locations suggests a factory design approach where lower frequencies might be reinforced through the larger rear units while frontal staging relies on the smaller 5.25-inch components.
- Full-range speakers designated for the rear positions would typically handle the entire frequency spectrum without requiring additional tweeters, simplifying installation for those seeking straightforward upgrades.
- Midbass drivers installed in the front locations would generally focus on mid-to-low frequency reproduction, necessitating separate high-frequency components to maintain balanced sound across the audio spectrum.
- The single DIN radio opening provides standard aftermarket head unit compatibility, allowing for modern source units with enhanced power output and signal processing that could better drive upgraded speakers.