yaya u got ur point too~ that's why ppl add batt to seperate from main source.hi1983 said:i don think car battery is very important for ice, more important is the alternator of the car, and capasitor near the amp. most important is enaugh power for amp
and pprfessional who add a battery is not for "power", but is to separate the power source to the amp for cleaner power. thats the main point of adding a battery