1987 Cadillac DeVille Speaker Sizes
The 1987 Cadillac DeVille speaker size chart provides factory audio specifications for replacement or aftermarket upgrade components. Information includes speaker locations within the vehicle and corresponding sizes for dashboard, front door panel, and rear deck lid positions. Data assists in identifying compatible aftermarket speakers to replace or upgrade the factory audio system components.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4x6 | Full-Range |
|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1987 Cadillac DeVille Speaker Replacement Summary
3
total positions
2
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 1 High: 0Replacement priority:
High: 1 Medium: 2 Low: 01987 Cadillac DeVille 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 1987 Cadillac DeVille utilizes three distinct speaker locations throughout the cabin, each accommodating different size configurations that may require specific mounting considerations during replacement.
- Dashboard speakers in this vehicle accept 4x6 inch full-range units, which typically combine midrange and tweeter elements in a single chassis to reproduce a broad frequency spectrum from the forward staging position.
- Front door panels accommodate 5.25 inch round speakers with flexibility between midbass drivers and full-range options, allowing owners to prioritize either low-frequency response or broader tonal coverage depending on system design.
- The rear deck lid position supports 6x9 inch oval speakers designed as full-range units, a format commonly used in vehicles from this era to maximize cone area within the available mounting space.
- Replacing factory speakers in the 1987 Cadillac DeVille would likely produce noticeable sound improvement, as aftermarket options often feature stronger magnets, lighter cones, and higher power handling than original equipment components.
- The single DIN radio opening suggests compatibility with a wide range of aftermarket head units that could provide additional power output and signal processing capabilities to complement upgraded speakers.
- Door panel speakers might benefit most from immediate attention during upgrades, as this location typically provides optimal imaging and staging for the primary listening position when properly dampened and sealed.
- Full-range speakers in multiple locations indicate the factory system was designed without separate tweeters or subwoofers, meaning aftermarket component speaker systems could substantially alter the tonal character and detail retrieval.