1997 Infiniti Q45 Speaker Sizes

The 1997 Infiniti Q45 factory audio system features dashboard locations that accommodate a 1 inch speaker size, front door panel locations that support 6.5 inch speakers, and rear deck lid locations that accept 5.25 inch units. Tweeter, midbass, and full-range compatible types serve as a replacement and upgrade.

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

1997 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

1997 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 1997 Infiniti Q45 features a three-position speaker layout that includes dashboard tweeters, front door panels, and rear deck locations, each serving distinct frequency reproduction roles within the factory audio system.
  • Dashboard-mounted 1-inch tweeters handle high-frequency sound reproduction, and aftermarket replacements in this position would typically focus on crisp treble response and imaging capabilities.
  • The front door panels accommodate 6.5-inch drivers that can accept either midbass or full-range speaker designs, offering flexibility in component system configurations or coaxial speaker installations.
  • Rear deck lid positions support 5.25-inch speakers with midbass or full-range compatibility, potentially serving as fill speakers in a component setup or primary rear output in simpler configurations.
  • Replacing the front door speakers might take priority over rear positions when upgrading the 1997 Infiniti Q45 audio system, as front soundstage typically contributes more significantly to overall listening experience.
  • Component speaker systems separating tweeters from midbass drivers could leverage the existing dashboard tweeter locations, though this would require compatible crossover networks and power handling characteristics.
  • The size differential between 6.5-inch front and 5.25-inch rear speakers suggests a front-biased factory configuration, where larger drivers in forward positions handle greater acoustic demands.
  • Full-range speakers in the 5.25-inch rear position would reproduce a broader frequency spectrum independently, while midbass-specific drivers would require pairing with the dashboard tweeters for complete frequency coverage.
  • Both Single DIN and Double DIN radio compatibility provides options for head unit replacement, with Double DIN openings accommodating touchscreen interfaces and advanced processing features that could complement upgraded speakers.