2004 Infiniti M45 Speaker Sizes
The speaker size chart for the 2004 Infiniti M45 provides factory specifications for replacement and aftermarket audio speakers. Information covers speaker locations throughout the vehicle, including dashboard, front door panel, rear deck lid, and rear door panel positions. Data includes factory speaker specifications to assist with audio system upgrade planning and aftermarket speaker installation.
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| 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.