Ok im no sure if this is an amp problem or if my subs just arent working... my amp is on and the power light is green.. rca cables hooked to the reciever...so i go to hook up the subs and i put the positive with the positive and the negative with the negative... i turn the car on and the amp goes on and i turn on the radio and not a squeak comes out of my subs,, nothing happens!! what is my problem i cant figure it out suggestions would be helpful!