1985 Pontiac Fiero Speaker Sizes
The 1985 Pontiac Fiero factory audio system features dashboard locations that accept 4x10 inch speakers, while rear door panel locations accommodate 4x6 inch units. Full-range options serve as a replacement and upgrade for the vehicle.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4x10 | Full-Range |
|
| Rear Door Panel | 4x6 | Full-Range |
|
1985 Pontiac Fiero Speaker Replacement Summary
2
total positions
1
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01985 Pontiac Fiero 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 1985 Pontiac Fiero came equipped with two speaker locations that utilized different rectangular configurations rather than round designs. The dashboard position received 4x10 inch units while the rear door panels housed smaller 4x6 inch speakers.
- Both factory positions were designed to accommodate full-range speakers, which handle the entire audio spectrum from bass to treble without requiring separate tweeters or woofers. This configuration suggests a relatively simple factory audio setup typical of mid-1980s automotive installations.
- The dashboard speakers represent the larger of the two sizes, with their 4x10 inch footprint potentially offering more cone area for sound reproduction compared to the rear door units. This size difference may have been intended to prioritize front-stage audio output in the 1985 Pontiac Fiero.
- Replacement speakers for these positions would need to match the specific rectangular dimensions, as 4x10 and 4x6 inch sizes cannot be substituted with round speakers without custom mounting solutions or adapter brackets.
- The single DIN radio opening follows the standard head unit size prevalent during this era, measuring approximately 2 inches in height. This standardized opening allows for modern aftermarket radio installations that maintain compatibility with the original dashboard cutout.
- Upgrading the factory full-range speakers to aftermarket equivalents in these same sizes could potentially enhance audio clarity and power handling, though the rectangular format may offer fewer premium options compared to more common round speaker sizes in the aftermarket.