i just wiring up everything in my system the head unit and amp and sub the problem is the line output isnt sending any signal or anything i cant even pick anything up with the meter. the head unit is a clarion db355mp the amp is a 1200w xplod and the sub is a tws2000spl pioneer premier 12 inch theres no sub control or anything in the deck does it have anything to do with like the deck running the speakers already so it doesnt send a signal to the amp im so confused about the whole thing much help would be appriciated