i have a 1800 watt kenwood kac-9152d amp 500 wattx1@4ohms 900wattx1@2ohms.i had the exact same amp before hooked up with a 8 guage wire and it work but stop. now i got the same amp and i hook everything up and nothing blows but i hook the ground up and amp fuses blow...WHAT AM I DOING WRONG PLEASE HELP.