I just a bought 2000 Cirrus Lxi from my mechanic. He had to change the battery and now the radio does not see the 6 disc cd changer. I checked the fuses and they are fine.

Does anyone have any suggestions on what to look at?

I read elsewhere about a reset button behind the face plate, but the faceplate doesn't want to come off and I don't want to break it obviously.

Thanks in advance for any help.
Bob H