The Install Bay 18-Gauge Paired Primary Speaker Wire will suit all your automotive stereo needs. This black and red paired wire comes in a convenient 500 ft. spool. And it's all copper for superior reproduction.
18-Gauge for 18-Gauge automotive speaker wire runs
All copper for excellent signal reproduction
Red/black pair to easily keep track of connections at both ends
Coil of 500 ft. provides enough for multiple installations