OK, here's a more detailed description of the hole drilling procedure. As it says, drivers side of the firewall close to the fender, therefore, find a spot in that general location that you can drill a hole without the following happening as a result:
1) Drilling through important components like electrical wires, steering column, carpet, etc.
2) Having the wire be visible after it is run through the firewall (hence the hole was drilled too low)

Edit: I'm not flaming, well maybe a little, but people need to excercise some common sense sometimes and think about what it is they are trying to do and just do it. It ought not take 2 pages of responses to get a battery cable inside the cabin.