Where Is The Cabin Air Filter On A 2005 Toyota Tacoma Double Cab 4X4?

I have an 99 s-10 4x4 and it does not have one but usually they are behind the glove box on most newer trucks..also try going to autozone and have them look up the part and look in a haynes manual in the index for cabin filter, or call the toyota dealership parts department and ask them i am sure they will give you the answer ..if you don't find it any of these ways you might have to buy a manual from the dealership.  Hope this helps