ANybody know of a hole in the firewall that is pretty easy to get to and run a wire through? (97 gtp coupe)

front passanger seat, if you remove the little "carboard" kick peics, there is a large gromet at about where the carpet ends

these gauge install directions have a picture of the gromet:

http://www.dans-website.com/gauges.htm

Yeah that grommet is right underneath the passengerside carpet like Blue gt said. I ran my amp wire through it and it fit with plenty of space. Good luck