2011 Infiniti FX35 Speaker Sizes

The 2011 Infiniti FX35 factory audio system features multiple locations for acoustic components, where the center dash and dashboard accommodate 3.5 inch speakers, cargo area supports a 5.25 inch speaker size, and front door panel and rear door panel accept 6.5 inch units. Compatible speaker types for replacement and upgrade include full-range and midbass configurations.

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

Speaker Details by Location
Location Size Type Notes
Cargo Area 5.25 Midbass / Full-Range
  • Ample working space
  • Medium replacement priority
  • Replacement difficulty: low
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
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

2011 Infiniti FX35 Speaker Replacement Summary

5 total positions
3 easy to replace
2 high priority
0 professional only

Replacement difficulty:

Low: 3 Medium: 2 High: 0

Replacement priority:

High: 2 Medium: 3 Low: 0

2011 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 door panel speakers in the 2011 Infiniti FX35 likely warrant attention first, as these 6.5 inch locations typically handle the majority of vocal reproduction and mid-frequency content that passengers notice most during daily listening.
  • Full-range speakers offer an all-in-one solution that reproduces the entire audible spectrum from a single driver, while midbass speakers focus on lower-mid frequencies and typically require pairing with separate tweeters for high-frequency response.
  • The cargo area location accepts 5.25 inch speakers that can function as either midbass or full-range units, potentially contributing to rear-fill sound or reinforcing lower frequencies depending on the chosen configuration.
  • Center dash and dashboard positions accommodate 3.5 inch full-range speakers, which may serve as supplementary output for enhancing soundstage width or providing additional vocal clarity from forward-facing positions.
  • Replacing the factory speakers in the 2011 Infiniti FX35 with aftermarket units often yields noticeable improvements in clarity, dynamic range, and bass response, particularly when upgrading to components with higher sensitivity ratings and better build quality.
  • The single DIN radio opening provides flexibility for head unit upgrades, though some aftermarket receivers may require mounting adapters or installation kits specific to this chassis.