1989 Plymouth Horizon Speaker Sizes
The 1989 Plymouth Horizon speaker size chart displays factory audio specifications for replacement and upgrade purposes. Information covers speaker locations throughout the vehicle, including front door panel and rear door panel positions. Details provided assist in identifying compatible aftermarket speakers that match original equipment specifications for the audio system.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Door Panel | 6x9 | Full-Range |
|
1989 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: 01989 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 1989 Plymouth Horizon typically accommodate 5.25 inch speakers, which can be replaced with either midbass or full-range units depending on the desired audio configuration. Midbass speakers would handle mid-to-low frequencies when paired with separate tweeters, while full-range speakers could reproduce the entire frequency spectrum without additional components.
- Rear door panel positions accept 6x9 inch oval speakers designed for full-range operation, providing a larger cone area than the front positions. This size difference may allow the rear speakers to produce fuller bass response and higher overall output levels compared to the smaller front units.
- Replacing the factory speakers with aftermarket units of matching specifications could improve sound clarity, frequency response, and power handling capabilities. The stock speakers in vehicles from this era often used paper cones and lower-quality materials that degrade over time.
- The single DIN radio opening in the 1989 Plymouth Horizon follows standard industry dimensions, allowing for straightforward replacement with modern head units that offer enhanced features and amplification. Upgrading the head unit alongside speakers may provide better source signal quality and control over audio settings.
- The combination of 5.25 inch front and 6x9 inch rear speakers creates a staggered configuration where different-sized drivers handle audio reproduction. This setup may require careful balance adjustments to prevent the larger rear speakers from overwhelming the front soundstage.
- Aftermarket full-range speakers in these sizes typically feature higher sensitivity ratings and power handling than original equipment, potentially delivering noticeable volume increases even when powered by factory wiring and amplification.