1985 Plymouth Horizon Speaker Sizes
The 1985 Plymouth Horizon factory audio system locations include front door panels that accommodate 5.25 inch units and rear door panels that support a 6x9 inch speaker size. Midbass and full-range units serve as compatible replacement and upgrade types for the vehicle acoustic setup.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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.