The GMT900 Silverado/Sierra factory speakers are adequate but uninspiring. Here’s how to upgrade for significantly better audio.
Factory GMT900 Speaker Locations:
- Front doors: 6.5" or 6x9" depending on trim
- Dash tweeters: 2" silk dome tweeters on Bose models
- Rear doors/sail panels: 6.5" midbass
- Under-cab rear (crew cab): Additional midbass speakers
Upgrade Path:
Budget Upgrade ($80–120 total): Component Set
Replacing just the front door speakers with a quality 6.5" coaxial or component set makes the biggest difference. Quality brands at this price range include Polk Audio DB652, Pioneer TS-A1670F, and Kenwood KFC-S1676.
Mid-Range Upgrade ($200–400): Component Set + Tweeters
A quality component set with crossover-driven tweeters (Focal, JBL, Alpine) installed in the factory tweeter locations delivers exceptional soundstage and clarity.
Full System ($500+): All Locations + Amp
Complete replacement of all speaker locations with matched drivers, driven by a 4-channel amplifier, creates a truly premium sound system.
For Bose-Equipped Trucks:
GMT900 Bose systems use the factory amp to power speakers at unusual impedances. An aftermarket head unit like the Kissound 7" Double DIN may require a PAC audio interface for the Bose amp integration.
What’s your current GMT900 speaker situation?