$30 Off Over $300
Code: DEC30
Free Shipping Over $75*
  • Make sure it fits

    Please select your vehicle to ensure that this product fits.

Select your vehicle

Alpine PSS-21GM 2-Way Direct Fit Sound System by Alpine

Part no: ALP-PSS-21GM

$1,899.95 + free Shipping
Price match guarantee

Please Verify Fitment

This product fits only specific vehicles. Select your vehicle to ensure it fits.

Product Details

* Not For Sale Outside the United States

Important Notes:

  • Sold as a kit
  • ONLY fits crew cab models
  • NOT compatible with the Bose factory sound system


  • 2007-2013 Chevrolet Silverado 1500
  • 2007-2013 GMC Sierra 1500


The Alpine PSS-21GM 2-Way Direct Fit Sound System upgrades your truck's sound system while using the factory speaker locations. It is compatible with your factory or aftermarket car stereo as long as you don't have the Bose factory sound system. This kit includes 6.5" speakers for the front doors, 6.5" coaxial speakers for the rear doors, 1" pod-mounted silk dome tweeters, a MRV-V500 5-channel V-Power amplifier, and a 10" zero space subwoofer. Unique tweeter housings are optimized for the best sound imaging and clarity. The speakers and tweeters fit into the factory locations and use the factory connectors. The 10" zero space subwoofer doesn't take up any usable space as it attaches to the back wall behind the rear seat. It is tuned for deep bass and creates low-frequency extension by coupling the enclosure to the cabin vents behind the seat. The 240W amplifier produces clean, efficient power even during extreme power demands. This system is backed by Alpine's one-year warranty.

Product Details:

  • Direct fit speaker package
  • 40W x 4 + 150W x1 RMS system
  • 6.5" speakers for front doors
  • 6.5" coaxial rear door speakers
  • 1" pod-mounted silk dome tweeters
  • 10" zero space subwoofer
  • MRV-V500 V-Power amplifier
  • Includes all necessary wiring and hardware
  • Backed by Alpine's one-year warranty

Parts Included:

  • (1) Alpine PSS-21GM 2-Way Direct Fit Sound System

Years Covered:

2007, 2008, 2009, 2010, 2011, 2012 and 2013

For California residents: Proposition 65 Warning

Vehicle Fitment

2007-2013ChevroletSilverado 1500
2007-2013GMCSierra 1500

Additional Information

SKU Aliases PSS-21GM

Let's Chat