Filter Filters CK Pickup Remove All Filters Price $100-$500 (41) $500 and above (4) Condition New (45) Brand Harmony Audio (45) Make Chevy (45) 1988-1998 Chevy Silverado Ext Truck Harmony R124 Dual 12" Rhino Coated Sub Box $253.99 88-98 Chevy Silverado Ext Truck Harmony A122 Dual 12" Rhino Sub Box & CXA800.1 $541.99 88-98 Chevy Silverado Ext Truck Harmony R124 Dual 12" Rhino Sub Box & CXA400.1 $398.99 Compatible with 1988-1998 Chevy CK Silverado Extended Truck Harmony A122 Dual... $430.99 88-98 Chevy Silverado Ext Truck Harmony F124 Dual 12" Rhino Sub Box & CXA800.1 $531.99 1988-1998 Chevy CK Silverado Ext Truck Harmony A102 Single 10 Sub Box Enclosure $149.99 1988-1998 Chevy CK Silverado Ext Truck Harmony F104 Single 10 Sub Box & CXA400.1 $294.99 1988-1998 Chevy CK Silverado Ext Truck Harmony R124 Dual 12" Sub Box Enclosure $256.99 1988-1998 Chevy CK Silverado Ext Truck Harmony A102 Dual 10" Sub Box Enclosure $244.99 1988-1998 Chevy CK Silverado Ext Truck Harmony A122 Single 12 Sub Box Enclosure $160.99 1988-1998 Chevy CK Silverado Ext Truck Harmony R124 Dual 12" Sub Box & CXA400.1 $401.99 1988-1998 Chevy Silverado Ext Truck Harmony A122 Dual 12" Rhino Coated Sub Box $285.99 1988-1998 Chevy CK Silverado Ext Truck Harmony A122 Dual 12" Sub Box Enclosure $280.99 1988-1998 Chevy CK Silverado Ext Truck Harmony R104 Single 10 Sub Box & CXA400.1 $281.99 1988-1998 Chevy CK Silverado Ext Truck Harmony F104 Single 10 Sub Box Enclosure $154.99 1988-1998 Chevy CK Silverado Ext Truck Harmony A122 Single 12 Sub Box & CXA800.1 $396.99 Compatible with 1988-1998 Chevy CK Silverado Ext Truck Harmony A102 Single 10... $389.99 1988-1998 Chevy CK Silverado Ext Truck Harmony F124 Single 12 Sub Box & CXA400.1 $310.99 Compatible with 1988-1998 Chevy CK Silverado Extended Truck Harmony A102... $310.99 Compatible with 1988-1998 Chevy CK Silverado Extended Truck Harmony R104... $236.99 1988-1998 Chevy CK Silverado Ext Truck Harmony R124 Single 12 Sub Box & CXA400.1 $286.99 1988-1998 Chevy CK Silverado Ext Truck Harmony R104 Dual 10" Sub Box & CXA400.1 $348.99 1988-1998 Chevy CK Silverado Ext Truck Harmony F124 Single 12 Sub Box Enclosure $170.99 1988-1998 Chevy CK Silverado Ext Truck Harmony F104 Dual 10" Sub Box Enclosure $229.99 12