Not all Turkish plugs have an earth, most stuff you take will not need one as they don't have an earth cable such as hair dryer, curling tongs, straighteners, dvd player, stereo etc. things like kettles & toasters are likely to have an earth wire fitted.
As for fitting; 2 wire appliaces if fitting to a 2 pin plug 1 wire to each pin. 3 wire appliances use a 3 pin plug green & yellow wire to the earth pin which normally has a metal stap which comes out of the side of the plug & the other 2 wires 1 to each of the 2 pins.
I really is straight forward.
Paul