2005 Trail Blazer, Spec out needs for Power upgrades of small audio sy

[smullen 1]

So, been out of Car Audio for a bit, been wanting to put another small system in, every time something seems to come up..  So I'm trying again...

 
Vehicle: 2005 Chevy Trail Blazer

 
So far I have the following...

Pioneer Head unit,

Polk Separates in all 4 doors.

 
Parts I have acquired:

Sundown 2000D (these Sundowns are are few years old But BNIB) (Needs 200 Amp Ext Fuse)

Sundown 125.4 (fuse 30x2)

15" FI BTL (Same with the FI Sub, BNIB)

 

I would like to figure out what all exactly I need to do get and do so the two Amps have plenty of power. No Blinking lights, or any power problems...


I was thinking,


Update front  Batt (not sure what)

Mechman Alt (not sure which one)

Big 3

Two Fused Runs of 0/1 to rear

1 or More Batts (the less room the better) (Was thinking an XS d6500)

Some kinda Distro/Buss Bar setup to connect the two amps...  

 
I don't really see adding more amps or devices to this system for the foreseeable future


I can wire stuff up, but I have Zero box building skills, so unless someone has other recommendations, I'm thinking about a Pre-made Fatboxusa Box...

http://www.fatboxusa...losure-box.html
 

I know most folks here frown on pre-made Enclosures, but I'm not looking at doing car shows, comps or to show off, I just want a fairly banging system, without going in 20K....
 

In a year or so, when I get a lot more credit cards paid off, I'd like to re-do a much bigger system in a secondary vehicle...
 

[EPerez 236]

I had a trailblazer with number of systems in it.

I had a 275a singer alt with a deka 9a31. I had 3 runs of 1/0 an big 3 done. Stock front batt.

Never went below 13.5v with my bc2k. Also had a small 4 channel alpine amp too.