1990 GMC Safari Speaker Sizes
The 1990 GMC Safari speaker size chart provides factory speaker specifications and locations for replacement or upgrade purposes. Information includes details on dash-mounted audio components and additional speaker positions within the vehicle. Aftermarket installations can reference these specifications to ensure compatibility with the factory audio system when selecting replacement speakers.
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| Location | Size | Type | Notes |
|---|---|---|---|
| D-Pillar | 4 | Midrange |
|
| Dashboard | 6.5 | Full-Range |
|
| Tail Gate | 6.5 | Midbass / Full-Range |
|
1990 GMC Safari Speaker Replacement Summary
3
total positions
1
easy to replace
0
high priority
1
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 1Replacement priority:
High: 0 Medium: 2 Low: 11990 GMC Safari 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 D-pillar locations in the 1990 GMC Safari accommodate 4-inch midrange speakers, which typically handle frequencies in the vocal and upper-midrange spectrum. These smaller drivers would focus on reproducing detail and clarity in the critical mid-frequency range rather than attempting to cover the full audio spectrum.
- Dashboard positions accept 6.5-inch full-range speakers that would likely serve as the primary sound source for front-seat occupants. Full-range drivers of this size generally attempt to reproduce most of the audible frequency spectrum from a single cone, though they may lack the deep bass extension and high-frequency detail that dedicated component systems provide.
- The tail gate area offers 6.5-inch mounting locations with flexibility for either midbass or full-range speaker types. Midbass drivers would complement the forward-facing speakers by reinforcing lower midrange and upper bass frequencies, while full-range options could provide rear-fill audio coverage throughout the cabin.
- Replacing the original factory speakers in the 1990 GMC Safari would likely prioritize the dashboard locations first, as these positions sit closest to the primary listening position and contribute most directly to sound staging and tonal balance. The D-pillar midrange speakers would follow as a secondary upgrade target to enhance mid-frequency definition.
- The single DIN radio opening provides a standard chassis dimension that simplifies aftermarket head unit installation. This form factor would allow for direct replacement of the factory audio source without requiring dash modifications or custom mounting brackets.
- Aftermarket 6.5-inch speakers often feature materials like polypropylene cones, rubber surrounds, and larger magnet structures compared to original equipment. These construction differences could result in improved power handling, lower distortion, and extended frequency response when installed in the dashboard or tail gate positions.