i bought a new radio system JVC 180 watt when i connect all the wires (Ex black and black/ Blue and Blue) and turn on the car, the radio turns on for 1 second then it turns off when i click the power butten nothing happens BUT when i try to put the cd in it takes it and it says load for on second then it turns off again and nothing else works i checked all the fuses and wires and everything seems ok please help me