car subwoofer

More then a year ago I replaced my car factory amp with a Sony XM-GS4 (3 Channel Mode, 2 Front Speakers and 1 Subwoofer) using the factory wires (15 Amp via Fuse). I have 2 power mods that brings my car's running voltage to 15 volts. Despite 3 speakers and an amp sharing only 15 amps worth of...