2002 Infiniti I35 Speaker Sizes
The 2002 Infiniti I35 factory audio system locations feature specific mounting provisions that accept various components. Specifically, the a-pillar accepts a 1 inch speaker size, while the front door panel accommodates 6.5 inch speakers. Furthermore, the rear door panel supports 5.25 inch units, and the rear deck lid accommodates an 8 inch speaker size. Compatible speaker types for replacement and upgrade projects include tweeter, midbass, full-range, and woofer units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| A-Pillar | 1 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 8 | Woofer |
|
| Rear Door Panel | 5.25 | Midbass / Full-Range |
|
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: 1Replacement priority:
High: 1 Medium: 2 Low: 12002 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.