2004 Infiniti M45 Speaker Sizes
The 2004 Infiniti M45 factory audio system features specific locations for various audio components, where the dashboard accommodates a 1 inch speaker size, while the front door panel and rear door panel accept 6.5 inch speakers. Additionally, the rear deck lid supports 6.5 inch units. Compatible speaker types for a system replacement and upgrade include tweeter, midbass, and full-range units.
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 | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
2004 Infiniti M45 Speaker Replacement Summary
4
total positions
3
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 3 Medium: 1 High: 0Replacement priority:
High: 1 Medium: 3 Low: 02004 Infiniti M45 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN | 7"×2" | 180×50 | Standard size for basic car radios with small display or no display |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 2004 Infiniti M45 utilizes a uniform 6.5-inch speaker configuration across front door panels, rear door panels, and rear deck lid locations, which may simplify the replacement process when upgrading multiple positions simultaneously.
- Dashboard tweeters measuring 1 inch in the 2004 Infiniti M45 handle high-frequency reproduction, and their small form factor typically requires component speakers or aftermarket tweeters specifically designed for tight installation spaces.
- Front and rear door panels accommodate both midbass and full-range speaker types, giving owners flexibility to install either dedicated midbass drivers as part of a component system or standalone full-range speakers for simpler upgrades.
- The rear deck lid position accepts the same 6.5-inch midbass or full-range speakers as the door locations, potentially contributing to rear soundstage width when properly matched with front components.
- Replacing factory speakers with aftermarket units featuring higher sensitivity ratings and improved material construction could enhance overall clarity and dynamic range throughout the cabin.
- Component speaker systems separating tweeters from midbass drivers might take advantage of the existing 1-inch dashboard tweeter locations while utilizing the 6.5-inch door positions for woofer installation.
- The single DIN radio opening provides standard aftermarket head unit compatibility, which may facilitate integration with upgraded speakers through improved amplification and signal processing capabilities.