Where does everyone run the power wire for their amp? I mean what part of the fire wall? I'm guessing you all just use a hole that is already there for wires, but which one?

 

i drilled a hole for my 4 gauge, then ran it through the fresh air inlet for the main air system, then down the pass side along those clips, up the rear pass fender hump...etc.

 

Already was a massive hole right above where the ecu goes in the passenger foot well, just pull back the carpet, easiest one

 

If you have AC lines in your car, look down and to the left of them where they run through the firewall on the passenger side, use a good strong light and you will be able to see the grommet slightly sticking out of the wall. If you just use your fingers to search, you might / might not find it.