2009 Infiniti FX35 Speaker Sizes

The 2009 Infiniti FX35 factory audio system features specific mounting locations that accommodate standard drivers, where center dash, dashboard, and d-pillar accept 3.5 inch speakers, while front door panel and rear door panel support 6.5 inch units. Full-range, midrange, and midbass units function as compatible speaker types for a sound system replacement or audio upgrade.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
D-Pillar 3.5 Midrange
  • Extremely difficult access
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high
Dashboard 3.5 Full-Range
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2009 Infiniti FX35 Speaker Replacement Summary

5 total positions
2 easy to replace
1 high priority
1 professional only

Replacement difficulty:

Low: 2 Medium: 2 High: 1

Replacement priority:

High: 1 Medium: 3 Low: 1

2009 Infiniti FX35 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 front door panel speakers in the 2009 Infiniti FX35 may be prioritized for replacement, as these 6.5 inch locations typically handle a substantial portion of the audible frequency range and could yield noticeable improvements when upgraded.
  • The 3.5 inch full-range speakers positioned in the dashboard and center dash locations might contribute to midrange clarity and vocal reproduction, while the D-pillar units are specified as midrange-only drivers, suggesting a more focused frequency role in the overall sound stage.
  • Replacing the rear door panel speakers alongside the front components could create a more balanced listening environment throughout the cabin, as both locations accept either midbass or full-range driver types.
  • The single DIN radio configuration in this 2009 Infiniti FX35 might limit head unit upgrade options compared to double DIN slots, though aftermarket adapters or installation kits could potentially expand compatibility with newer source units.
  • The presence of five distinct speaker locations suggests a multi-driver audio system design, where upgrading individual positions with higher-quality components could progressively enhance tonal accuracy and dynamic range.
  • Midbass-capable speakers for the 6.5 inch door locations might improve low-frequency response and impact, particularly when paired with an amplifier that provides adequate power to drive these larger cone areas effectively.