2004 Nissan Altima Speaker Sizes
The 2004 Nissan Altima speaker size chart details factory audio specifications for replacement or aftermarket upgrade purposes. Information covers speaker locations including a-pillar, front door panel, rear door panel, and rear deck lid positions. Specifications enable identification of compatible aftermarket speakers for system upgrades beyond factory audio components.
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| Location | Size | Type | Notes |
|---|---|---|---|
| A-Pillar | 1 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
2004 Nissan Altima Speaker Replacement Summary
4
total positions
3
easy to replace
1
high priority
1
professional only
Replacement difficulty:
Low: 3 Medium: 0 High: 1Replacement priority:
High: 1 Medium: 2 Low: 12004 Nissan Altima 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 2004 Nissan Altima factory audio system includes four distinct speaker locations with varying size requirements and functional capabilities.
- A-pillar positions accommodate 1-inch tweeters, which suggests the factory configuration may have included dedicated high-frequency drivers for enhanced treble reproduction.
- Both front and rear door panels accept 6.5-inch speakers that can function as either midbass drivers or full-range units, providing flexibility in system design approaches.
- The rear deck lid location accepts 6x9-inch speakers designated for full-range operation, offering a larger cone area than the door-mounted units.
- Door panel speakers might be considered a primary upgrade path given their mid-range sizing and dual compatibility with midbass or full-range configurations.
- The presence of dedicated tweeter locations indicates the possibility of building a component speaker system rather than relying solely on coaxial designs.
- Rear deck speakers with 6x9-inch dimensions typically provide enhanced bass response compared to smaller round speakers due to increased surface area.
- The radio cavity supports both single DIN and double DIN head units, allowing for various aftermarket receiver installation options.
- Upgrading to component speakers in the doors while utilizing the factory tweeter locations could maintain the original aesthetic while improving sound staging.
- The combination of tweeter positions and multiple full-range locations suggests the factory system was designed with multi-driver coverage across the cabin.