Yes but not at the speakers. There is a factory amp located behind the rightare the speakers on a ex element amplified? do they do to the amplifier that the sub goes to??
see the sticky at the top of the mobile electronics forum for integration info. you use a cut off rca cable for that part and tie it in.now when you put a new head unit in.. i know you use a harness to hook up to the oem harness... but what do you do to the separate subwoofer harness that consists on 4(?) wires going to the oem head unit?
what power does the head unit give out?