I have a 2001 grand am 4 door SE. Im going to be installing 2 kicker 12" L7s with a hifonics amp. I am almost certin that my headlights will dim and the subs will end up draining my battery to fast. I was thinking about buying a yellow top battery thing. but would my alt not be strong enough to keep a deep cycle battery powered? I thought about getting a cap but I know all that dose is strain your system and i dont want to buy a new alt eather. Would it be ok for me to just get a yellow top or a diffrent deep cycle battery? what do yall recomend?