1999 Porsche Boxster Speaker Sizes
The 1999 Porsche Boxster speaker size chart provides factory and aftermarket specifications for replacement audio components. Information includes speaker locations within the front door panel and rear door panel positions. Data covers factory-installed sizes and compatible aftermarket options for audio system upgrade applications.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 4 | Midrange |
|
| Rear Door Panel | 5.25 | Midbass / Full-Range |
|
1999 Porsche Boxster 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: 01999 Porsche Boxster 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 1999 Porsche Boxster features a two-way speaker configuration with 4-inch midrange drivers in the front door panels and 5.25-inch components in the rear doors.
- Front door panel speakers are limited to midrange frequencies, suggesting these units handle vocal and instrumental reproduction in the middle frequency spectrum rather than low-end bass response.
- Rear door panels accept either midbass or full-range 5.25-inch speakers, providing flexibility in system design depending on whether dedicated bass reproduction or broader frequency coverage is desired.
- The size difference between front and rear locations indicates that lower frequency content may be directed primarily to the rear 5.25-inch positions, while the front 4-inch drivers focus on midrange clarity.
- Aftermarket speaker selection for the front doors would be constrained to 4-inch midrange components, which are less common than standard sizes like 6.5-inch or 5.25-inch full-range options.
- Installing full-range speakers in the rear positions could potentially eliminate the need for additional subwoofers in basic audio upgrades, though midbass-specific drivers might provide improved low-frequency extension when paired with a separate subwoofer.
- Both single DIN and double DIN head units are compatible with the dashboard opening, allowing for installation of navigation units or larger touchscreen displays if desired during audio system upgrades.
- The relatively small 4-inch front speaker size may result in limited output capability compared to larger drivers, potentially making the rear speakers the primary contributors to overall sound pressure levels in the cabin.