So im new to car audio, i've been researching and i have general knowledge about car audio. I still questions I would like opinions on. So I currently have nothing set-up in my car besides a double din tv deck (came with the car, and I plan on changing it out with a single din bluetooth head). I also have 2 Brutus 15" BRZ15D4 subs in an enclosed box (Plan on switching to a ported box). NO comp speakers, 6x9's, or amps (Everything else is stock). Im also getting a Clarion EQS746 Equalizer. Dont need anyone bashing my subs, I know their quality from experience, not the best but they're descent. Also plan on getting HO Alternator.
My questions are-
1.What amp for the subs?
2.What kind of Speakers? (Door Speakers & 6x9's)
3.Cap OR Extra Battery OR Both?