Filter Filters Firebird Remove All Filters Price $100-$500 (25) Condition New (25) Brand Harmony Audio (25) Make Pontiac (25) 82-92 Pontiac Firebird Coupe Harmony R104 Dual 10" Sub Box Enclosure & CXA400.1 $346.99 1993-2002 Pontiac Firebird Coupe Harmony A122 Dual 12" Sub Box Enclosure Package $245.99 93-02 Pontiac Firebird Coupe Harmony R124 Dual 12" Sub Box Enclosure & CXA400.1 $367.99 93-02 Pontiac Firebird Coupe Passenger Side 10" Harmony F104 Sub Box & CXA400.1 $279.99 1982-1992 Pontiac Firebird Coupe Harmony F104 Dual 10" Sub Box Enclosure Package $229.99 1993-2002 Pontiac Firebird Coupe Harmony R124 Dual 12" Sub Box Enclosure Package $216.99 1982-1992 Pontiac Firebird Coupe Harmony A102 Dual 10" Sub Box Enclosure Package $239.99 Compatible with 82-92 Pontiac Firebird Coupe Harmony F104 Dual 10" Sub Box... $474.99 93-02 Pontiac Firebird Coupe Passenger Side 10" Harmony F104 Sub Box Enclosure $139.99 93-02 Pontiac Firebird Coupe Passenger Side 10" Harmony A102 Sub Box Enclosure $134.99 93-02 Pontiac Firebird Coupe Passenger Side 10" Harmony R104 Sub Box Enclosure $120.99 1982-1992 Pontiac Firebird Coupe Harmony R104 Dual 10" Sub Box Enclosure Package $215.99 1993-2002 Pontiac Firebird Coupe Harmony F124 Dual 12" Sub Box Enclosure Package $255.99 Compatible with 82-92 Pontiac Firebird Coupe Harmony A102 Dual 10" Sub Box... $469.99 Compatible with 93-02 Pontiac Firebird Coupe Passenger Side 10" Harmony A102... $384.99 Compatible with 1982-1992 Pontiac Firebird Coupe Harmony R104 Dual 10" Sub... $300.99 Compatible with 93-02 Pontiac Firebird Coupe Harmony A122 Dual 12" Sub Box... $466.99 Compatible with 1982-1992 Pontiac Firebird Coupe Harmony F104 Dual 10" Sub... $390.99 Compatible with 93-02 Pontiac Firebird Coupe Harmony F124 Dual 12" Sub Box... $496.99 Compatible with 1982-1992 Pontiac Firebird Coupe Harmony A102 Dual 10" Sub... $385.99 Compatible with 1993-2002 Pontiac Firebird Coupe Passenger Side 10" Harmony... $305.99 Compatible with 1993-2002 Pontiac Firebird Coupe Passenger Side 10" Harmony... $221.99 Compatible with 1993-2002 Pontiac Firebird Coupe Harmony A122 Dual 12" Sub... $380.99 Compatible with 1993-2002 Pontiac Firebird Coupe Harmony R124 Dual 12" Sub... $316.99 12