i just installed my new system. i was just connecting the wires to my amp and everything was cool till i connected the rcas and my amp went into protect mood. I unhooked them from my headunit and plugged them back into the amp and everything was fine but as soon as they are connected back into the headunit the amp goes back into protect mode can anyone help me figure out what my problems is? is it the headunit itself? ive tried multiple amps and multiple sets of rca cables and the same problem still occurs.