Hi, I am looking for a pdf for the 4500 RDS E.O.N Audio Manual.
What it is is there is a button that looks like it has a phone on it and I am wondering if this is for my mobile phone? Atm all it does is mute the sound.
That's exactly what it is, it's a Mute button. It mutes the sound of the audio when you want to use your phone or for any other purpose which requires audio silence.
Push once to mute audio, push again to unmute. That's it!