100FT 18 AWG Gauge Electrical Wire, DC 12V Hookup Red Black Copper Stranded Auto 2 Cord, Flexible Extension Cable with Spool for LED Ribbon Lamp Light or Low Voltage - Amazon.com
ANCOR 18 AWG Primary Wire by the Foot | West Marine
Stinger PRO Series Speaker Wire (18 Gauge) Priced per foot at Crutchfield