where to run power wire through firewall?

I own a 2002 monte carlo with the amp under the rear deck.  anyone know of the most common place to run the power wire through the firewall?  on montecarloforum.com they said to "use the passenger side" but i only got the 1 response and that doesn't quite help  me...  where is the grommit that i should be shoving this wire (4ga soon to be 0) through? 

thanks in advance, i badly want to get my sounds installed today!

-chevy metal

you're the man tommy.  thanks for the tip.

one last thing!  i know about the whole door chime deal but i'm just going to bypass the entire stock system...  i only need to connect the power and ground on my alpine for it to turn on, right??

tia

-chevy

i'm majorly jumping ahead of myself, even if i do get everything done today i'll be rolling without a radio for a few days until the plugs for my ppi come in...

but i'm gonna do it anyway so it's installed just that much faster when they get here! 

most definately, i'll try to tackle it tomorrow and will take pictures if possible.  i don't need the chimes, and do not want to pay 100 bucks to integrate it to my amp, i'm not even going to be using it.  i'm upgrading my hu and stock speakers before i install the subs.  and ya'll are gonna have t o help me design my boxthis time through, i've never tried to do anything like i'm about to attempt in the next few weeks.

it seems pretty strict here on posting, should this just turn into my install thread as it happens? it'll be happening soon enough...

i believe this would be the easiest spot to run

power wire through, it's a huge square on either side of the firewall, you could easily fit 0ga without having to cut anything.  all you'd have to do is run the wire down the firewall and get underneat to push it through to the other side, i don't own jackstands so i can't take a picture of the grommit outside of the car.  but it's literally just a square towards the bottom of the firewall.

i'm not a professional by any means, but THAT is where my power wire is going until someone tells me i'm wrong.

the grommit is somewhere down in this area.   remember that it's at the very bottom of the firewall, you'll miss it if you're not paying attention.  but it's seriously just an empty square down there.