James115

I searched the forum, but i did not get the answer, is there in the car any sd slot? I have a gla with the usb slot in the Central armrest, and the old b class had an sd slot in the center Dashboard. What is the option to play mp3 a part from the cd ?

skullbox15

The facelift cars have them right in the front near the volume knob. Not sure about the 08-11 models.

swedepat

Older ones have PCMCIA card slot at the front of the headunit(stereo)
There are adapters so you can fit a memorycard into it.
And there are a cable aviable to hook up into slot in the glovecompartment.

Doing this, yes you can listen to mp3´s