Rockford 4 Awg Power & Signal Rockford Fosgate Power Kits feature full AWG (American Wire Gauge) 100% oxygen free copper All brass parts are manufactured using the highest quality of standards Rockford Fosgate Power Kits feature full AWG (American Wire Gauge) All brass parts are manufactured using the highest quality of standards Rockford Fosgate Power Kits feature full AWG (American Wire Gauge) 100% oxygen free copper Rockford Fosgate Power Kits feature full AWG (American Wire Gauge) 100% oxygen free copper All brass parts are manufactured using the highest quality of standards All kits include the appropriate wire termination hardware