2000 Lincoln Town Car Cartier CD Changer

Question

I have an Alpine Dolby sound system which works well. I replaced some cd's in the rear CD changer which is located in the trunk and now the message on the radio says magazine not found. I changed CD's and the magazine but same story. Anyone know the brand of the Lincoln installed CD changer or the model #. Cannot located any brand name on the CD changer and am assuming that it was part of an original premium sound package offered in the Cartier Edition of the Town Car.

Thanks
Susan