What are all the sizes for the speakers in a 1994 toyota 4runner.

You will want to get the size and factory amperage specs from a dealer service department. They should have this in their shop manual. A automotive electronics store (such as Circuit City) should also have a chart or book with the speaker sizes in it so you will know if your replacement speakers will fit.

go yo this website, and click on the " out fit my car tab under car audio" it should tell you once you enter your vehicle specifics: www.crutchfield.com