Came across this on a deal I couldn't pass up. Couple questions...
1. There are 2 power and 2 grounds on this? Is this necessary?

2. I am looking to build a console between the rear seats...either 4 10s or 2 12s reversed.
Any suggestions on that?
I'm looking for small airspace, and somewhat affordable...best bang for the buck I guess you could say.

3.Can I get away with 1 optima battery and no cap with this, and my viair 380. Or do I need 2? Is optima my only option?

Thanks for your help and advice.