Fits 99-06 GMC Sierra Ext Cab Truck Alpine SWT-10S2 Single 10" Custom Sub Box
1 x Alpine SWT-10S2 Car Audio SWT Series Sub Single 2 Ohm 700W Shallow Subwoofer. Alpine SWT-10S2 Car Audio SWT Series Sub Single 2 Ohm 700W Shallow Subwoofer 10" SWT Series Single 2-ohm Shallow Mount Truck Subwoofer.