99 tl need to find a hole in the firewall for my power wires for amp

 

if i'm correct it should be close to the middle on the driver's side. you should see a small black rubber protector around the hole.

 

Just above the gas pedal, you might need a marker or something small and hard (please refrain from that joke guys, I know it's a set-up) to push the rubber gromet out with, a pen also works great! You might see it easier if you open the engine bay and look towrds the firewall by the driver. You can see it there easily, and it's awkward but not hard to to.

A little recomendation, wrap the power wire with tape to prevent the wire scraping on the opening of the hole and gradually wearing away the insulation leading to a short circuit.

 

install service pack 2, that will close all your firewall holes.

 

haha...i was thought you were talking about network security as well