GMC Filter Sort Filters In Stock Availability In Stock Price $100-$500 (90) $500 and above (53) Brand Alpine (95) Harmony Audio (48) Sort SKU: A-Z SKU: Z-A Price: Low to High Price: High to Low Least Popular Most Popular Sort by: SKU Sale Price Popularity 2004-2012 GMC Canyon Crew Cab Truck Alpine SWT-10S4 Dual 10" Sub Box... $675.95 2007-2013 GMC Sierra Ext Cab Truck Alpine Type S S-W10D2 Dual 10" Sub Box... $359.90 2007-2013 GMC Sierra Extended Cab Truck Alpine SWT-10S2 Single 10 Sub Box... $214.95 2014 - UP GMC Sierra Crew Cab Alpine Next-Generation R-Series R2-W10D4 Single... $578.95 2014 - UP GMC Sierra Crew Cab Alpine SWT-10S4 Dual 10" Sub Box - Final 2 Ohm $439.90 2014 - UP GMC Sierra Double Cab Alpine SWT-10S4 Dual 10 Sub Box - Final 2 Ohm $424.95 Compatible with 1988-1998 GMC Sierra Extended Cab Truck Alpine SWT-10S2... $366.99 Compatible with 1988-1998 GMC Sierra Extended Cab Truck Alpine Type S S-W10D4... $316.99 Compatible with 1999-2006 GMC Sierra Extended Cab Truck Alpine Type S S-W12D2... $525.99 Compatible with 2002-2009 GMC Envoy SUV Alpine Type S S-W12D4 Single 12"... $316.99 Compatible with 2007-2013 GMC Sierra Extended Cab Truck Alpine SWT-10S4 Dual... $565.99 Compatible with 2007-2013 GMC Sierra Extended Cab Truck Alpine Type S S-W10D4... $309.99 Compatible with 2007-2013 GMC Sierra Extended Cab Truck Alpine Type S S-W12D2... $535.99 Compatible with 2014 - UP GMC Sierra Double Cab Alpine Type S S-W10D2 Dual 10... $476.99 Compatible with 2014 - UP GMC Sierra Double Cab Alpine Type S S-W12D2 Dual 12... $521.99 01-06 GMC Sierra 1500 Crew Truck Alpine SWT-10S2 Ported 10" Sub Box Enclosure... $454.95 01-06 GMC Sierra Non-HD Crew Cab Truck Alpine SWT-10S4 Dual 10" Sub Box... $429.95 1982-2004 GMC Sonoma Extended Cab Truck Alpine Next-Generation R-Series... $711.95 1982-2004 GMC Sonoma Extended Cab Truck Alpine Type S S-W12D2 Dual 12" Sub... $399.95 1988-1998 GMC Sierra Ext Cab Truck Alpine SWT-10S2 Single 10" Sub Box... $224.95 1988-1998 GMC Sierra Ext Cab Truck Alpine SWT-10S4 Dual 10" Sub Box Enclosure... $650.95 1988-1998 GMC Sierra Ext Cab Truck Alpine Type S S-W10D2 Dual 10" Sub Box... $550.95 1999-2006 GMC Sierra Ext Cab Truck Alpine SWT-10S2 Single 10" Sub Box... $475.95 1999-2006 GMC Sierra Ext Cab Truck Alpine SWT-10S4 Dual 10" Sub Box Enclosure... $439.95 123456