1987 Pontiac Grand Prix Speaker Sizes
The 1987 Pontiac Grand Prix factory audio system designates the dashboard to accommodate 3.5 inch speakers and the rear deck lid to accept 4x10 inch units, concluding with a 3.5 inch speaker size. Full-range drivers serve as compatible types for replacement and upgrade procedures.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 3.5 | Full-Range |
|
| Rear Deck Lid | 4x10 | Full-Range |
|
1987 Pontiac Grand Prix 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: 01987 Pontiac Grand Prix 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 1987 Pontiac Grand Prix features two distinct speaker locations with different size requirements. Dashboard positions accommodate 3.5 inch speakers, while rear deck lid locations utilize 4x10 inch speakers. Both positions are specified for full-range speaker types, which can handle the entire audio frequency spectrum from bass to treble without requiring separate tweeters or woofers.
- Full-range speakers in the dashboard location might provide mid-range and high-frequency reproduction, though 3.5 inch drivers typically have limited bass response due to their smaller cone area. The rear deck speakers with their 4x10 inch oval configuration could potentially deliver more low-frequency output than the smaller dashboard units, though full-range designs generally compromise between frequency ranges rather than excelling at any particular one.
- Replacement speakers for the 1987 Pontiac Grand Prix would need to match these specific dimensional requirements. The 4x10 inch oval format represents a somewhat less common speaker size compared to round configurations, which may limit aftermarket options. Factory mounting provisions typically determine whether adapters would be necessary for installation.
- The single DIN radio specification indicates a standard head unit size, which is relevant for audio system upgrades. Single DIN receivers measure approximately 2 inches in height, and replacement of the factory radio could provide improved power output and features that might better drive aftermarket speakers in the dashboard and rear deck positions.
- Speaker sensitivity ratings and power handling capabilities would influence how much sound improvement could be achieved through replacement. Full-range speakers eliminate the complexity of component systems but may not provide the same level of frequency separation and clarity that dedicated mid-range drivers and tweeters could offer in a more sophisticated audio setup.