im not sure the gauge of the power wire goin back but its big, i the ground is where the hatch latch is and i did sand all the paint off totally, ill turn the power down to 3/4 on the amp for sure and whats the big 3? im not into it that big to get a small bat for the rear i just want a better sound then stock. my bat is a duralast im not sure the cold cranking amps off the top of my head i think its high 500 but the reg amps is like 700 somethin

 

also i have heard that if i cut a hole in the sub box for the air to go out, the sub will hit harder. is this true or should i not have a hole in the back cause im gunna build a sub box for 2 10in kickers

 

If you build the box look into Aero ports but you can't throw some random hole into a box thinking that will be a proper port. Which kicker models are you looking to build the box for?

Here is a link on how to do the big 3
http://forum.sounddomain.com/ubbthre.../312025/page/1

 

there kicker comps from the mid to late 90's i believe, my dad had them so he gave them to me