2001 Infiniti Q45 Speaker Sizes

The 2001 Infiniti Q45 factory audio system features dashboard locations that accommodate a 1 inch speaker size, while front door panel locations accept 6.5 inch units, and rear deck lid locations support 5.25 inch units. Compatible replacement and upgrade speaker types consist of tweeters, midbass, and full-range units.

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

Speaker Details by Location
Location Size Type Notes
Dashboard 1 Tweeter
  • 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 Deck Lid 5.25 Midbass / Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

2001 Infiniti Q45 Speaker Replacement Summary

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

Replacement difficulty:

Low: 2 Medium: 1 High: 0

Replacement priority:

High: 1 Medium: 2 Low: 0

2001 Infiniti Q45 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 2001 Infiniti Q45 features a three-position speaker configuration with tweeters in the dashboard, mid-sized speakers in the rear deck lid, and larger speakers in the front door panels.
  • Dashboard tweeters at 1 inch typically handle high-frequency reproduction, while the 6.5 inch front door speakers and 5.25 inch rear deck speakers can accommodate either dedicated midbass drivers or full-range replacements.
  • Front door panel speakers at 6.5 inches represent the largest available mounting locations in this vehicle, potentially offering greater bass response capabilities compared to the smaller rear deck positions.
  • Upgrading the front door speakers could deliver more noticeable sound quality improvements due to their larger size and proximity to front occupants.
  • The radio supports both single DIN and double DIN aftermarket head units, providing flexibility for audio system upgrades beyond speaker replacement.
  • Full-range speakers could simplify installation in both the front and rear positions, though component systems with separate tweeters might leverage the existing dashboard tweeter locations.
  • Midbass-focused speakers in the 6.5 inch front locations paired with the dashboard tweeters could create a more balanced frequency distribution across the cabin.