Ditto on my 300F coupe! I didn't realize mine had it until we found the switch and vacuum lines coiled up and tucked into the leading edge of the console. At some point, it was taken out of the dash and never put back (probably when a previous owner had the dashpad recovered, although, it still had the hole for the switch). My car was missing the faceplace/mounting hardware for the switch, which was not easy to find, even though it was the same switch/faceplate on other Chrysler models. Thankfully, Jeff at JC Auto had a complete set tucked away that I happily purchased! Much like Jamie, I'm anxious for my 300F to come out of restoration so I can start enjoying it!
Randy