hi,I have an aux cable that plugs into the cd ports of the back of my skoda octavia 2005 radio and there is three wire red, black and white, i was wondering which wire goes in which port on the radio, i would have pictures but i dont know how to post them

There's a wiring diagram on top of the head unit usually, and it should show you on there which the AUX terminals are. There'll be left audio, right audio, and ground.