I got a 03 olds alero with stock 105 alternator in it. I'm gonna run a hifonics brz 1700d and a ppi p600.2. The ppi is already hooked up with 4 g ofc and running at like 30%. I got the big 3 upgrade with jl audio 0 gauge ofc. What would be sufficient to run the brz and not see a huge voltage drop? I don't really wanna uprgrade the alternator cuz I only plan on staying with the car another year o so. Will a die hard platinum up front be enough if not i can fit a xs power 3400 which I believe will handle it. Also my current battery is still good will my alternator be able to handle a smaller battery in the back? Also will running cca 0 gauge be sufficient for that amp or should I use ofc. Any other suggestions are also greatly appreciated. I don't have a budget but I don't wanna spend more than I need to.