2017 GMC Terrain Speaker Sizes
The speaker size chart for the 2017 GMC Terrain provides factory audio specifications and locations for replacement or aftermarket upgrade purposes. Information includes speaker positions in the a-pillar, dashboard, front door panel, rear door panel, and rear side panel areas of the vehicle. Details cover factory speaker specifications and configurations within the audio system to assist with aftermarket component installations.
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| 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 |
|
2017 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 A-pillar tweeters in the 2017 GMC Terrain handle high-frequency reproduction, while the 8-inch rear side panel woofers focus on low-frequency output, suggesting a factory system designed with frequency-specific driver placement.
- Door panel speakers at 6.5 inches across both front and rear positions allow for either midbass-focused component system installations or full-range replacements, depending on whether the factory tweeters are retained.
- The 3.5-inch dashboard speakers operate as full-range drivers, though their smaller cone area typically limits low-frequency extension compared to the larger door-mounted units.
- Replacing the front door panel speakers may yield more noticeable sound quality improvements than rear door upgrades, as front-stage imaging generally contributes more to the listening experience in most vehicle audio configurations.
- The rear side panel woofers at 8 inches provide dedicated low-frequency reinforcement, which could make subwoofer additions less critical for listeners satisfied with moderate bass extension.
- Component speaker systems utilizing the existing A-pillar tweeter locations might integrate more naturally into the factory mounting points than coaxial replacements that include their own tweeters.