Filter Filters CK Pickup Remove All Filters Price $100-$500 (2) Condition New (2) Brand Harmony Audio (2) Make Chevy (2) Compatible with 1988-1998 Chevy CK Silverado Ext Truck Harmony A102 Dual 10"... $469.99 1988-1998 Chevy CK Silverado Ext Truck Harmony R104 Dual 10" Sub Box & CXA400.1 $348.99