I have a 2003 celica with the action package - it did not come with fog lights but it was pre-wired. I bought a set from Walmart for $20 that fit nicely. You can get an OEM fog light switch for the dealer for $20. The switch will fit perfectly into your dash.
Since the action package fog lights were discontinued, is the OEM fog light switch from the dealer still available? I had though the OEM fog light switch was on the turn signal lever.