Amazon.com: BOSS Audio Systems KIT2 8 Gauge Amplifier Installation Wiring Kit - A Car Amplifier Wiring Kit Helps You Make Connections and Brings Power To Your Radio, Subwoofers and Speakers : Electronics
8 Gauge Marine Wire
Southwire (By-the-Foot) 8 Black Stranded CU SIMpull THHN Wire 20488399 - The Home Depot