Simply, no. Will the amp power up and play, most likely. You just wont be getting the amplifiers full potential. Id bet the farm that your lights will dim as well. Get a full farad capacitor. Don't let people tell you they dont work either, I have one. As long as your car cranks fine as it is and your alt. and battery are in good shape a cap will make up for where your factory charging system would otherwise fall short.