I have a 2005 chevy malibu, i cant seem to find where i can run an amplifier wire?

[jokerwithya13]

I am talking about from the battery to the trunk. I can wire it through the carpet but i mean through the firewall.. I cant find any place to wire it from the battery to the interior of the car. This is the best i can explain it. If you can please explain to me where i would really appreciate it.
I dont feel comfortable drilling through my firewall, Does anyone know of any ports that are avalible to run the wire through?