Okay, so I don't have to go out in the cold weather and try to measure......I need 2 RCA cables for the system. (One is already installed).I have run one down the drivers side of the car. The amps are mounted on the DS of the trunk.....how long of a cable do I need? Yeah, it was a long time ago when I ran the other one and I don't remember. Trigger wire and power are already run too.