Hi,

I have an A3 '12 Plate S-line.

When i bought the vehicle there was visible damage to the front of the stereo system, the concert 3 i believe? i have attached an image below.

The Aux function was working fine however the visible damage at the front wasn't fixable, so i replaced the whole unit.

I connected the new unit correctly however, now when i plug the aux in, no option appears for aux, when i double press the CD button, i receive the message 'NO CDC'

I imagine i have replaced the stereo for an older model, therefore the aux function hasn't been set.

Is there a simple fix for this problem?

Thanks in advance, any assistance is greatly appreciated.