1991 Geo Metro Speaker Sizes
The 1991 Geo Metro speaker size chart details factory audio system specifications for replacement or aftermarket upgrade purposes. Information includes locations of speakers within the vehicle, such as dashboard and rear door panel positions. Data covers original equipment specifications to assist with identifying compatible aftermarket components when upgrading from factory audio system configurations.
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 | 4 | Midrange |
|
| Rear Door Panel | 4x6 | Full-Range |
|
1991 Geo Metro Speaker Replacement Summary
2
total positions
1
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01991 Geo Metro 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 1991 Geo Metro dashboard speakers operate as midrange drivers, which suggests they may handle mid-frequency content rather than full-range audio reproduction, potentially limiting their output in both bass and treble registers without additional speaker components elsewhere in the system.
- The rear door panel locations accept 4x6 inch full-range speakers, indicating these positions likely serve as the primary source for complete frequency reproduction in vehicles lacking additional subwoofer or dedicated tweeter installations.
- Replacing the dashboard midrange speakers could improve vocal clarity and instrument definition in the mid-frequency spectrum, though owners might notice limited impact on low-end response or high-frequency extension compared to upgrading the rear full-range units.
- The 4x6 inch rear door speakers in the 1991 Geo Metro may represent the priority replacement location for those seeking overall sound quality improvement, given their full-range design covering bass, midrange, and treble frequencies within a single driver assembly.
- Aftermarket speaker selections for the dashboard location would need to accommodate the midrange-specific role, meaning full-range replacements in this position might not function optimally without crossover adjustments or system reconfiguration to account for frequency overlap with the rear speakers.
- The single DIN radio opening allows for head unit upgrades that could provide additional power output or signal processing capabilities, potentially benefiting both the dashboard midrange and rear full-range speaker performance through improved amplification or equalization features.