2G Power distribution block for aftermarket gauges

[slowwhite]

I'm an electrical newb. And I need advice on if/how to make a power distribution block for my 6 aem digital gauges.
I've currently been just using these.
https://www.farmandfleet.com/produc...feedsource=3&gclid=CP6OmZCIotACFZGHaQod2bUEbA
But I really don't like the clutter, and because I have 6 gauges I've run out of places to tap into.
I'm currently about to move all my A-pillar gauges to the hvac switch area above the radio, using the Ortiz triple gauge pod.
I'd prefer to have all the power wires run to a single distribution block as well as ground. mounted someplace behind the arm rest or behind the gauges. How do I accomplish this?

I don't know what to tap into that can handle 6 gauges, as well as has to be able to turn on/off with the key etc.

If it helps the gauges are:
AEM digital:
-boost
-wideband
-fuel pressure
-oil pressure
-oil temp
-coolant temp

Closest thread I've found was on the EVO forum:
http://www.evolutionm.net/forums/ev...installs-radar-detectors-anything-else-6.html

 

[RamenPride]

I have 6 gauges also and wired them so they get power directly from the battery using relays and a fuse distribution block like this one:

 

[slowwhite]

How did you do the relays? and where did you get the power on/off from?