2020 GMC Terrain Speaker Sizes
The 2020 GMC Terrain factory audio system includes an a-pillar location that accommodates a 1 inch speaker size, while the dashboard accepts 3.5 inch units. Front door panel and rear door panel locations accept 6.5 inch speakers, and the rear side panel accommodates an 8 inch speaker. Available tweeter, full-range, midbass, and woofer units serve as a replacement upgrade.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| A-Pillar | 1 | Tweeter |
|
| Dashboard | 3.5 | Full-Range |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Side Panel | 8 | Woofer |
|
2020 GMC Terrain Speaker Replacement Summary
5
total positions
2
easy to replace
1
high priority
1
professional only
Replacement difficulty:
Low: 2 Medium: 2 High: 1Replacement priority:
High: 1 Medium: 2 Low: 2Additional Notes
- The front door panel and rear door panel locations in the 2020 GMC Terrain both share a 6.5 inch sizing, which suggests these positions may offer the most consistent upgrade path across the vehicle's speaker layout.
- The A-pillar position is sized at 1 inch and is limited to tweeter-type drivers, meaning it would handle high-frequency reproduction only, with no low or midrange capability at that location.
- The dashboard position accommodates a 3.5 inch full-range driver, which could suggest a moderate frequency range output, though a driver of that size may have some limitations in low-frequency extension compared to larger positions.
- The rear side panel appears to be the only dedicated woofer location in the vehicle at 8 inches, suggesting it may carry most of the low-frequency responsibility within the factory speaker configuration.
- The front door panel location, rated for midbass or full-range types at 6.5 inches, could be considered a higher priority replacement position given its size and placement relative to the primary listening area.
- A midbass driver installed in either door panel position would likely focus on mid-to-low frequency output, potentially complementing the tweeter at the A-pillar if a component speaker setup were considered.
- The spread of speaker types across the five locations, from a 1 inch tweeter to an 8 inch woofer, suggests the factory layout may attempt a degree of frequency division across the cabin.