1991 Toyota 4Runner Speaker Sizes
A speaker size chart for the 1991 Toyota 4Runner details factory speaker specifications across multiple locations. Information covers the dashboard, front door panel, rear door panel, rear side panel, and rear audio system positions. Data includes speaker sizes for each location to assist with aftermarket replacement or upgrade installations. Specifications apply to factory audio configurations.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Front Door Panel | 4 | Midrange |
|
| Rear | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 4 | Midrange |
|
| Rear Side Panel | 5.25 | Midbass / Full-Range |
|
1991 Toyota 4Runner Speaker Replacement Summary
6
total positions
3
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 3 Medium: 3 High: 0Replacement priority:
High: 2 Medium: 3 Low: 11991 Toyota 4Runner Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 1991 Toyota 4Runner accommodates multiple speaker sizes across different locations, with 4-inch positions in the dashboard and door panels, 5.25-inch openings in the rear side panels, and 6.5-inch slots in the front door panels and rear location.
- Midrange speakers fit the 4-inch positions throughout the vehicle, while midbass or full-range speakers work with the larger 5.25-inch and 6.5-inch locations, suggesting a multi-stage speaker configuration.
- The front door panels accept both 4-inch midrange and 6.5-inch midbass or full-range speakers, indicating potential dual speaker mounting points or alternative installation options in this location.
- The 1991 Toyota 4Runner supports both single DIN and double DIN radio installations, providing flexibility for aftermarket head unit upgrades alongside speaker replacements.
- The rear audio configuration includes 4-inch door panel speakers, 5.25-inch side panel speakers, and 6.5-inch rear speakers, creating multiple upgrade paths for enhancing bass response and overall audio output.
- Full-range speakers offer a single-component solution for the 5.25-inch and 6.5-inch locations, while component systems might utilize the 4-inch midrange positions in conjunction with separate tweeters for improved frequency separation.
- The variety of speaker sizes and types suggests that prioritizing the 6.5-inch locations could yield more substantial improvements in low-frequency reproduction compared to upgrading the smaller 4-inch midrange positions alone.