97 Speaker Wattage

Hi Just bought a 97 corolla and I'm going to buy a new stereo does anyone know the wattage of the speakers

10 or 15...buy new speakers too. it only costs $80 for new Pioneer speakers and they sound a whole lot better too.

and to save you the trouble of making another thread in the near future, you need 4" speakers up front and 6" in the back