My GT Sport came from factory with a RCD500 MP3 with an Aux-In inside the armrest cubby. If I were you, I'd keep the radio, though. My Ed. 30 came from factory with a RNS-510 rev. A, which I upgraded to a rev. R. The RNS-510 came also with a 6 CD changer under the armrest and an Aux-In facing the hand brake lever.