1998 GMC P3500 Speaker Sizes
The 1998 GMC P3500 speaker size chart provides factory audio system specifications for replacement or aftermarket upgrade purposes. Information includes speaker locations in front door panels and rear door panels. Data covers OEM specifications to assist in identifying compatible aftermarket audio components for factory system upgrades or replacements.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
1998 GMC P3500 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: 01998 GMC P3500 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 1998 GMC P3500 front door panels accommodate 6.5 inch speakers, which can function as either midbass drivers or full-range units depending on the audio system configuration desired.
- Both front and rear door panels share the same 6.5 inch speaker size specification, allowing for uniform component selection when replacing factory speakers throughout the cabin.
- Midbass speakers in these locations typically handle frequencies from approximately 80 Hz to 4 kHz, providing the foundation for vocals and most instrumental content in the audio spectrum.
- Full-range speakers would attempt to reproduce the entire audible frequency range from a single driver, though physical limitations at 6.5 inches may result in compromised high-frequency extension compared to dedicated tweeters.
- The rear door panel speaker locations offer potential for creating a multi-channel soundstage or supplementing front speaker output, depending on how the audio system is configured.
- Speaker replacement in these positions may improve clarity and dynamic range over factory units, particularly if the original speakers have deteriorated from age or environmental exposure.
- The single DIN radio opening provides standard mounting dimensions of approximately 2 inches tall by 7 inches wide, compatible with most aftermarket head units without requiring additional adapters.
- Coaxial speakers would be a simpler installation option for these door locations, integrating a tweeter into the same mounting footprint as the woofer cone.
- Component speaker systems could utilize the door locations for woofers while mounting separate tweeters elsewhere in the cabin for improved high-frequency dispersion and staging.
- Power handling capacity and sensitivity ratings would determine how effectively replacement speakers convert amplifier power into acoustic output in the vehicle environment.