I have a JBL GT0700.1 amp, 4 ga. wiring kit, running a single 12 inch memphis M3. I hooked up the system about 6 months ago and everything was working fine. Then about a week ago, my amp went into a flashing mode, it flashes from power to protect and does it all the time. I took the amp out and re-wired everything, and when I connect the ground,power and remote wires it goes to power and stays on, but when I try to connect the rca cables it sends it into that falshing mode once again. I had a 150 amp mini-anl fuse from the battery and it was blown, so I replaced it with an ANL fuse holder and a 100 amp fuse. Any help would be helpful thank you.

You may have a short in your RCAs. Try a new set.