Amp gets power but my sub doesn't respond..

[Mltimpulse]

I have a pioneer avh-x2700bs deck, pioneer champion series GM-9601 amp, and a pioneer TS-W310D4 in a 2003 Chevrolet suburban and my sub just cut out all of a sudden. I wasn't playing it loud or pushing it at all. So I drove home, and checked all the wires, they were all good. There is a little blue light on my amp that says power/protect and it just lights up blue, so that has power. But my sub doesn't work. My fuse between my red power wire on my amp and the battery isn't blown.

If anyone could help it would be much appreciated. Thanks in advance.

 

[danisnotonfire]

Are the 40A fuses on the amp itself good? RCA wires weren't damaged somewhere?