GMC Filter Sort Filters In Stock $500 and above Remove All Filters Availability In Stock Price $100-$500 (90) $500 and above (53) Brand Alpine (32) Harmony Audio (21) 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 2014 - UP GMC Sierra Crew Cab Alpine Type S S-W12D2 Dual 12" Sub Box with... $595.95 2014 - UP GMC Sierra Crew Cab Alpine Type S S-W10D2 Dual 10" Sub Box with... $609.85 Compatible with 2014 - UP GMC Sierra Crew Cab Alpine Type S S-W12D2 Dual 12"... $501.99 2014 - UP GMC Sierra Double Cab Alpine Type S S-W10D2 Dual 10 Sub Box with... $570.95 2014 - UP GMC Sierra Double Cab Alpine Type S S-W12D2 Dual 12 Sub Box with... $615.95 Compatible with 2007-2013 GMC Sierra Crew Cab Truck Alpine Type S S-W12D2... $519.99 2007-2013 GMC Sierra Crew Cab Truck Alpine Type S S-W12D2 Dual 12" Sub Box... $610.95 2015-UP GMC Canyon Crew Cab Truck Dual 10" Alpine SWT-10S4 Sub Box Enclosure... $665.95 01-06 GMC Sierra Non-HD Crew Cab Truck Alpine Type S S-W12D2 Dual 12" Sub Box... $585.95 Compatible with 2007-2013 GMC Sierra Crew Cab Truck Alpine SWT-10S4 Dual 10"... $574.99 1988-1998 GMC Sierra Ext Cab Truck Alpine Type S S-W12D2 Dual 12" Sub Box... $620.95 1999-2006 GMC Sierra Ext Cab Truck Alpine Type S S-W10D2 Dual 10" Sub Box... $575.95 1999-2006 GMC Sierra Ext Cab Truck Alpine Type S S-W12D2 Dual 12" Sub Box... $649.85 01-06 GMC Sierra Non-HD Crew Cab Truck Alpine SWT-10S4 Dual 10" Sub Box... $655.95 01-06 GMC Sierra Non-HD Crew Cab Truck Alpine Type S S-W10D2 Dual 10" Sub Box... $555.95 2001-2006 GMC Sierra HD Crew Truck Alpine Type S S-W10D2 Dual 10" Sub Box... $555.95 2007-2013 GMC Sierra Crew Cab Truck Alpine Type S S-W10D2 Dual 10" Sub Box... $565.95 2007-2013 GMC Sierra Ext Cab Truck Alpine Type S S-W12D2 Dual 12" Sub Box... $649.85 2014 - UP GMC Sierra Crew Cab Alpine SWT-10S4 Dual 10" Sub Box with S2-A60M... $689.85 1982-2004 GMC Sonoma Extended Cab Truck Alpine Type S S-W12D2 Dual 12" Sub... $605.95 2001-2006 GMC Sierra HD Crew Truck Alpine Type S S-W12D2 Dual 12" Sub Box... $595.95 2004-2012 GMC Canyon Crew Cab Truck Alpine SWT-10S4 Dual 10" Sub Box... $675.95 2014 - UP GMC Sierra Crew Cab Alpine Next-Generation R-Series R2-W10D4 Single... $578.95 Compatible with 1999-2006 GMC Sierra Extended Cab Truck Alpine Type S S-W12D2... $525.99 123