S-Chassis.com - help run sub wires?

Hey i need help on where to run a 4 guage power wire for the subs i have in the trunk. I know that im running the wire under the carpet, but from where in the interior can i run the wire so it goes into the engine bay? is there all ready a hole that i can fit that wire in to run it to the battery. I dont want to run it through the door, ive seen some like that and i don't like it. So does anyone have a pic of where i can run my wire through. I think i remember someone saying that there is a something on the passenger floor area that i can use, but i don't remember what it is. So can anyone help. I would like to install these subs ASAP.