Audio Systems: Wiring amp and subs, trunk area, subs

Question
Im trying to install the power wire for my amp. And was wondering what would
be the best way to route the wires with existing holes in the firewall.

Answer
Use an existing opening if possible.
If you can't find a good place, try coming underneath the vehicle and up through a hole in the trunk area.  If you must drill a hole, it is safer to go through the trunk area than the firewall.  Always seal the hole/opening to keep fumes from coming into the cabin.

Good Luck,
C