2007 Infiniti FX45 Speaker Sizes
The 2007 Infiniti FX45 factory audio system features specific mounting locations for audio components. Center dash, dashboard, and d-pillar locations accept 3.5 inch speakers, while front door panel and rear door panel locations accommodate 6.5 inch units. Compatible speaker types for a system replacement and upgrade consist of full-range, midrange, and midbass.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Center Dash | 3.5 | Full-Range |
|
| D-Pillar | 3.5 | Midrange |
|
| Dashboard | 3.5 | Full-Range |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
2007 Infiniti FX45 Speaker Replacement Summary
5
total positions
2
easy to replace
1
high priority
1
professional only
Replacement difficulty:
Low: 2 Medium: 2 High: 1Replacement priority:
High: 1 Medium: 3 Low: 12007 Infiniti FX45 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 2007 Infiniti FX45 features a multi-location speaker configuration with varying sizes and functional types throughout the cabin, suggesting a distributed audio architecture typical of higher-tier audio systems from this era.
- Front and rear door panels accommodate 6.5 inch speakers compatible with both midbass and full-range types, making these locations likely candidates for priority replacement when upgrading sound quality, as door-mounted speakers typically handle the majority of audible frequency reproduction.
- Three distinct 3.5 inch speaker locations exist across the center dash, dashboard, and D-pillar positions, with the first two designated for full-range reproduction while the D-pillar specifically handles midrange frequencies.
- The dual-purpose compatibility of door panel speakers with both midbass and full-range types provides flexibility in component selection, potentially allowing for dedicated component speaker systems or simpler coaxial replacements depending on desired audio performance.
- D-pillar speakers functioning as dedicated midrange drivers indicate a possible factory premium sound system design, where frequency ranges are divided among specialized speakers rather than relying solely on full-range units.
- The single DIN radio configuration in the 2007 Infiniti FX45 represents a standard head unit size, which may limit modern touchscreen upgrade options but maintains compatibility with numerous aftermarket receivers and integration adapters.
- Smaller 3.5 inch speakers distributed across dash and pillar locations likely contribute to soundstage width and imaging rather than bass output, suggesting their replacement might offer improvements in clarity and spatial presentation rather than low-frequency extension.
- The consistent 6.5 inch sizing across both front and rear doors simplifies the speaker replacement process, as identical components could potentially be installed in all four door positions if uniform sound character is desired.