Just installed a used Kicker 700.5 amp using manual. I have power but no sound to the speakers. I used the speaker level ins and double checked everything I could think of. Also used the remote blue wire coming from the reciever. Protection light comes on as it should then goes out and power light comes on green. This amp is a 3 channel amp and only 1 and 2 is hooked up at the moment. The crossovers are set to HLF at about 100 htz or there abouts. The sub channel isn't hooked up as I wanted to set the gains on these first. Any help would def. be appreciated