I already know that there is a hole in the firewall under the wiper cowel but don't want to go through all of that hasstle taking it off. I heard some people drilled a new hole but was wondering how I would go about doing that? How do I find the right spot, and what side do I drill from? I know i'm going to need a grommet and silicone to seal the hole once the 4 guage wire is in it. I just need help with the location of the hole and what side to drill from. The only thing I'm afraid of is hitting something important while drilling. Thanks everyone.
