2006 Impala Firewall Grommet to Run Wire for Ampfilier?

Can anyone tell me where on the firewall of a 2006 Impala to run an 8 gauge power wire to my amp?

Through a grommet, look theres one there.

The only ones I saw were the large wiring harness near the floor, and the one for the shift cable.

on passenger side under top edge of carpet, there is a square grommet that has one harness running though it. pull out the square rubber insert, drill a hole through that on your bench. then tap a hole through the actual boot there, comes out right behind and under the alt. feed your wire though the hole in the insert, and through the boot, push all in.

rudydapump wrote: on passenger side under top edge of carpet, there is a square grommet that has one harness running though it. pull out the square rubber insert, drill a hole through that on your bench. then tap a hole through the actual boot there, comes out right behind and under the alt. feed your wire though the hole in the insert, and through the boot, push all in.

I saw the big harness near the passenger's floor. Thanks, I see if I can remove the rubber boot and put a few cables thru it.