$51.99 25 Copper 0 Gauge AWG 3/8 Lug Ring Crimp Solder Terminal Power Or Ground Wire | eBay
SoundBox Connected 0 Gauge Black Amplifier Amp Power/Ground 1/0 Wire 50 Feet SuperFlex Cable 50 
WindyNation 4/0 -Gauge x 3/8-in Pure Copper Cable Lug (25-Pack) in the Lugs department at Lowes.com
