2000 Infiniti Q45 Speaker Sizes
The 2000 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. Compatible speaker types for replacement and upgrade include tweeter, midbass, and full-range options.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 1 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 5.25 | Midbass / Full-Range |
|
2000 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: 0Replacement priority:
High: 1 Medium: 2 Low: 02000 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 2000 Infiniti Q45 uses a three-location speaker configuration that separates high and low frequency duties across distinct mounting positions throughout the cabin.
- Dashboard tweeters at 1 inch handle upper frequency ranges, while larger drivers in the doors and rear deck manage mid-bass and full-range reproduction.
- Front door panels accommodate 6.5 inch drivers that can function as either dedicated midbass units in a component system or standalone full-range speakers depending on the installation approach.
- Rear deck lid positions support 5.25 inch speakers that may serve as secondary midbass reinforcement or provide full-range audio to rear seating areas.
- Component speaker systems would likely utilize the existing tweeter locations while replacing door and deck speakers with matched midbass drivers for improved staging and frequency response.
- The smaller rear deck size compared to front doors suggests a front-biased soundstage design that prioritizes audio quality for forward occupants.
- Upgrading door panel speakers might yield the most significant audible improvement given their larger size and positioning relative to front seat listeners.
- Both Single DIN and Double DIN radio configurations are possible, offering flexibility for aftermarket head unit installations with varying feature sets and display sizes.
- Full-range speaker replacements could simplify installation by maintaining the factory wiring approach without requiring external crossovers.
- The dedicated tweeter locations indicate that the original audio design separated high-frequency duties from larger drivers, a characteristic that aftermarket component systems could preserve or enhance.