Cdc button ????

[NSENGINEER]

Further to my previous thread have been searching the site for answers to my audio 20 ipod connection dilema and have heard people refer to holding the cdc button to activate aux in but am unsure what button this is as i have only radio,cd,telephone and sys buttons and still cannot find the aux in plug???
Please help

 

[John]

CDC is the CD Changer. In mine (W211), it is behind the gear stick behind a silver button.

I have a separate AUX button in the same menu as CDC. This then loads the MP3 DVD I have loaded.

My AUX socket is in the glove box but I don't use it.

What car do you have?