2013 BMW 320i Speaker Sizes
The 2013 BMW 320i factory audio system features a center dash, front door panel, rear deck lid, and rear door panel that accommodate 1 inch speakers and 4 inch speakers, while areas below seats accept an 8 inch speaker size. Compatible speaker types for a replacement and upgrade consist of tweeters, midrange units, and subwoofers.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Below Seats | 8 | Subwoofer |
|
| Center Dash | 1 | Tweeter |
|
| Center Dash | 4 | Midrange |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 4 | Midrange |
|
| Rear Deck Lid | 1 | Tweeter |
|
| Rear Deck Lid | 4 | Midrange |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 4 | Midrange |
|
2013 BMW 320i Speaker Replacement Summary
9
total positions
6
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 6 Medium: 3 High: 0Replacement priority:
High: 2 Medium: 7 Low: 02013 BMW 320i 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 2013 BMW 320i uses a multi-driver speaker configuration with dedicated tweeters, midrange drivers, and a subwoofer positioned across multiple locations throughout the cabin.
- Tweeters measuring 1 inch are installed in four distinct locations: the center dash, front door panels, rear deck lid, and rear door panels, suggesting a focus on high-frequency dispersion throughout the vehicle.
- Midrange drivers at 4 inches occupy the same four locations as the tweeters, indicating a component-style setup where frequencies are divided between separate speaker elements rather than using full-range coaxial speakers.
- The subwoofer location below the seats at 8 inches provides low-frequency output without consuming trunk space, though this placement may limit the size of aftermarket subwoofer options.
- Replacing the factory tweeters and midrange speakers with aftermarket components could improve clarity and detail in the mid and high frequencies, particularly if the original drivers have deteriorated over time.
- The component speaker configuration allows for targeted upgrades, where owners might choose to replace only the tweeters or only the midrange drivers depending on which frequency range needs improvement.
- The radio opening accepts both single DIN and double DIN head units, providing flexibility for aftermarket stereo installation without requiring dash modifications.
- Upgrading the 8-inch under-seat subwoofer might be constrained by the limited space in that location, potentially requiring a shallow-mount design to fit properly.
- The symmetrical speaker layout between front and rear locations suggests balanced sound staging was a consideration in the factory audio system design.