So now that you guys have helped me pick out my stereo HU, amps and design my sub enclosure, I just need the battery upgrade and charging system.

I plan on adding;
  1. A Blue Sea Switch
  2. A Blue Sea ACR
  3. A second battery
  4. Promarine 20, Dual Bank Charger
And I have the following questions,
  1. What part numbers for the Blue Sea Switch and ACR?
  2. Where to buy - Where online?
  3. Wire it per the following (except modify it for my Kicker amps and no ZLD) and yes I read the thread that I stole the diagram from!!