wiring 2003 hummer h2

I have just started to install a new system in my 2003 Hummer H2. I have installed a JVC KW-NT3HDT head unit, a Focal Solid 4 amp for front & rear speakers, a Focal Solid 1 amp for Sub, running Focal 165 KRX2's in the front, haven't picked my back yet thinking about Focal 130 KR's (any...