Audio Installation, Running Power Cable

I'm trying to get my new system installed in my maxima, but unlike my 97 monte which had a pre-drilled hole in the firewall, I can't find any way to get the power cable from the battery into the car (and from there into the trunk).

Has anyone installed subs in their maxima and can tell me how to get the cable from the battery to inside the car?

Thanks, Jordan

U dont tell too much about the max model...

My guess for best route is to drill through firewall near brake booster.

Clic clic clic via "Favorite Links" to get harness routing pics etc http://www.cardomain.com/ride/748507/1