What is the best way to get through the firewall so I can wire my light switch? Are there any holes that are easy to get to or is drilling my best bet?
Depends on the year, on my 98 I ran my fog light wire thru the same grommet that the main harness comes in thru, down by your left foot. Used a small pick to make a hole just a tad smaller than the wire itelf and in a clear spot in that plug. Wiggled the pick to make the hole just a bit bigger, then quickly pushed the wire thru and pulled. The rubber of the material then shrunk back down and created a tight seal around it. Been there for 5 years now with no issues and it's been in water up past that point a few times with no leakage...