Matt...
Before you drill. pull back the carpet at the passengerside floor. Find the big square grommet thing I'm talking about. Now take a flathead and pry at the lines that you see in it. It's techincally just pushed in there. Once you have the 3/4" this piece out of the way, put your wire through the thin boot that's on the outside (a slice with a razor knife should work) then position the wire reasonably and push that piece you pulled out ....back into place and cut if needed.
I've drilled through that piece, I've cut it ..I've pulled it out and stuffed it back in ... all work. I was trying to keep you with the best method.
