I need help

I need help on how to hook up my subwoofers and amp on my 2005 darango. i have two 15's and two 12's that im trying to put in there. i just dont want a bunch of wires running every where cause its my wifes truck and she likes the loud BOOM BOOM. and i also need help on how to change out the stock stereo cause iv heard it is a pain in the butt. thanks