Filter Filters Avalanche Remove All Filters Price $100-$500 (26) $500 and above (4) Condition New (30) Brand Harmony Audio (30) Make Chevy (30) Compatible with 2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12" Sub... $351.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony F124 Dual 12" Sub... $526.99 2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12" Sub Box & CXA400.1 Amp $341.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony A122 Dual 12" Sub... $496.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony A122 Dual 12" Sub... $410.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony A102 Dual 10" Sub... $479.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony R104 Dual 10" Sub... $310.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony F124 Dual 12" Sub... $440.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony F104 Dual 10" Sub... $494.99 2002-2013 Chevy Avalanche Underseat Harmony A122 Dual 12" Sub Box Enclosure New $255.99 2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12" Sub Box Enclosure New $231.99 2002-2013 Chevy Avalanche Underseat Harmony R104 Dual 10" Sub Box & CXA400.1 Amp $323.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony A102 Dual 10" Sub... $395.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony A122 Dual 12"... $521.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony F104 Dual 10" Sub... $410.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony F124 Dual 12"... $544.99 2002-2013 Chevy Avalanche Underseat Harmony F124 Dual 12" Sub Box Enclosure New $270.99 Compatible with 2002-2013 Chevy Avalanche Harmony F104 Dual 10" Sub Box... $390.99 2002-2013 Chevy Avalanche Underseat Harmony A102 Dual 10" Sub Box Enclosure New $249.99 2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12" Rhino Coated Sub... $426.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony A122 Dual 12"... $435.99 2002-2013 Chevy Avalanche Underseat Harmony R104 Dual 10" Sub Box Enclosure New $225.99 Compatible with 2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12"... $381.99 2002-2013 Chevy Avalanche Underseat Harmony F104 Dual 10" Sub Box Enclosure New $239.99 12