hi i just got 2 alpine type r subs installed wich are power by a crunch amp at only 350watt rms wich is barely powering the subs since they are 500 rms 1500 peak each but anyway i can barely turn the bass boost on my subs up half way without my lights flickering or my deck clips and it will shut off and go back on wich is really iritating....any suggestions...i was thinking a capacitor but will that take care of the problem?

its a 97 e320