1986 GMC S15 Speaker Sizes
The 1986 GMC S15 speaker size chart provides factory audio system specifications for replacement or aftermarket upgrade purposes. Information covers speaker locations in the dashboard and rear positions. Data includes stock specifications to help identify compatible aftermarket speakers when upgrading the audio system from factory components.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4x6 | Full-Range |
|
| Rear | 4x10 | Full-Range |
|
1986 GMC S15 Speaker Replacement Summary
2
total positions
0
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 0 Medium: 2 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01986 GMC S15 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 1986 GMC S15 features two distinct speaker locations with different dimensions, suggesting a two-stage replacement approach where the larger rear units might take priority for bass response improvements.
- Both speaker positions are designed for full-range drivers rather than component systems, indicating that each location handles the complete frequency spectrum independently without separate tweeters or crossovers.
- The rear 4x10 configuration provides a larger cone surface area compared to the dashboard units, which could translate to more substantial low-frequency output when upgraded to aftermarket alternatives with improved excursion capabilities.
- Dashboard speakers in the 4x6 format typically face physical installation constraints due to shallow mounting depths in instrument panel cavities, potentially limiting options for units with larger magnets or deeper baskets.
- Full-range compatibility in both locations means replacement speakers need to reproduce high frequencies adequately without relying on separate tweeters, making tweeter integration or whizzer cone designs relevant considerations during selection.
- The single DIN radio specification suggests head unit upgrades remain possible without extensive dash modification, which could complement speaker replacements by providing increased power output and equalization control.
- The oval rear format may offer better spatial coverage in the cabin compared to round speakers of equivalent cone area, though the specific mounting angles and enclosure types would influence actual dispersion patterns.
- Power handling capacity would likely differ between the two sizes when selecting aftermarket options, with the larger rear units typically rated for higher wattage than the smaller dashboard speakers.