hi, i bought a 2007 mondeo ghia x today. the radio sounds ace, however, when i press the cd/aux button it goes to aux, and stays on aux. i cant make it go onto cd mode. the aux port in the glove box works fine, and with most of my music being on my phone anyways its not the end of the world. but i would like to fix this, if poss. is my head unit broke? or am i missing something, have tried every button on it.