I'm doing my radio setup again this time

Hello dear community today I wanted to install my radio a Bosch (without CD) is inside a Sony (with CD) should be pure but the three plugs on the radio (orginal Audi) are nowhere described what is . Who knows what color is on the three plugs for what (i.e. the exclusive cables) ? How do I get from normal to chinch (my CD changer only goes with chinch) and which cable could be for the phone? I hope you can help me any way you like
P.S.: All good things are QUATTRO