2002 Infiniti I35 Speaker Sizes

The 2002 Infiniti I35 speaker size chart provides factory specifications and locations for audio system components. Information includes replacement sizes for speakers positioned in the front door panel, rear door panel, a-pillar, and rear deck lid. Aftermarket upgrade options correspond to factory mounting positions and specifications within the audio system.

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Speaker Details by Location
Location Size Type Notes
A-Pillar 1 Tweeter
  • Requires panel disassembly
  • Professional installation recommended
  • Low replacement priority
  • Replacement difficulty: high
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 8 Woofer
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2002 Infiniti I35 Speaker Replacement Summary

4 total positions
3 easy to replace
1 high priority
1 professional only

Replacement difficulty:

Low: 3 Medium: 0 High: 1

Replacement priority:

High: 1 Medium: 2 Low: 1

2002 Infiniti I35 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 2002 Infiniti I35 factory audio configuration incorporates four distinct speaker locations with varying sizes, suggesting a tiered approach to frequency reproduction across the cabin.
  • Component speaker installations would likely benefit from the existing A-pillar tweeter locations, which could integrate with aftermarket crossover networks when paired with larger midbass drivers in the doors.
  • The front door panels accommodate larger drivers than the rear doors, indicating the factory system may have prioritized front soundstage presentation over rear fill.
  • Rear door replacement options include both dedicated midbass drivers for component systems or coaxial speakers for simpler upgrades, though the 5.25-inch size may limit low-frequency extension compared to the front positions.
  • The 8-inch rear deck location provides subwoofer functionality without requiring trunk space modifications, though dedicated woofers in this position would typically handle frequencies above what specialized subwoofers reproduce.
  • Aftermarket full-range speakers in the front doors could deliver broader frequency response than factory units, potentially reducing reliance on the rear deck woofers for bass reinforcement.
  • The single and double DIN radio compatibility offers flexibility for head unit upgrades, which could provide improved amplification and signal processing for aftermarket speakers across all positions.
  • Replacing the A-pillar tweeters alone might yield minimal audible improvement unless paired with corresponding door speaker upgrades due to the interdependent nature of component systems.