i have a mb quarts(component) at the front and a not known speaker at the rear(eXcursion)4", run by 150 watts per channel(it's a 4 channel (hollywood labs'excursion) amps and it's 600 watts). now, IF i put a 1 subwoofer(JL audio)with enclosure should i connect that to the 600 watts amp with the mb quarts and have to buy a seperate small amps(punch 100a) for the rear, does that make sense and what if the fader works for the 4 speakers as front and the subwoofer as the rear with all that set-up? btw, i have a 200 4runner