2009 Audi TT Speaker Sizes
The 2009 Audi TT factory audio system features dashboard and front door panel locations that accommodate 2.5 inch and 3.5 inch units, while rear side panel locations accept a 1 inch speaker size alongside 5.25 inch and 6.5 inch units. Behind seat locations support 5.25 inch units, and front door panel locations also accept 6.5 inch and 8 inch units. Compatible speaker types for replacement and upgrade procedures include tweeters, midranges, midbass, full-range units, and woofers.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Behind Seat | 5.25 | Midbass / Full-Range |
|
| Dashboard | 2.5 | Midrange |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Front Door Panel | 3.5 | Midrange |
|
| Front Door Panel | 8 | Woofer |
|
| Rear Side Panel | 5.25 | Midbass / Full-Range |
|
| Rear Side Panel | 1 | Tweeter |
|
| Rear Side Panel | 6.5 | Midbass / Full-Range |
|
2009 Audi TT Speaker Replacement Summary
8
total positions
3
easy to replace
3
high priority
0
professional only
Replacement difficulty:
Low: 3 Medium: 5 High: 0Replacement priority:
High: 3 Medium: 2 Low: 32009 Audi TT 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 2009 Audi TT front door panel contains multiple speaker locations with varying sizes, suggesting a factory multi-way speaker configuration that separates frequency ranges across different drivers.
- Component speaker systems would likely utilize the existing 6.5 inch front door locations for woofers while the 3.5 inch positions could accommodate dedicated midrange drivers in a custom setup.
- The 1 inch rear side panel tweeters represent the smallest factory speaker locations and would typically handle high-frequency reproduction above 3-4 kHz in a multi-speaker array.
- Dashboard-mounted 2.5 inch midrange speakers may contribute to center stage imaging and vocal clarity, though their small size limits low-frequency output capability.
- Behind seat locations accept 5.25 inch drivers that could function as either dedicated midbass units or full-range speakers depending on the crossover configuration selected.
- The presence of 8 inch woofer locations in the front doors suggests potential for extended low-frequency response when compared to the smaller 6.5 inch positions also available in the same panels.
- Rear side panels offer three different speaker size options (1 inch, 5.25 inch, and 6.5 inch), indicating either multiple factory mounting points or locations designed for different audio package configurations.
- Replacing factory full-range speakers with component systems that utilize separate tweeters, midranges, and woofers would likely require addressing the multiple existing speaker locations to avoid phase interference.
- The double DIN radio compatibility provides sufficient dash space for aftermarket head units with advanced signal processing features that could optimize the multi-speaker layout.