There should be a tape monitor button from the front. There should also be a tape monitor input in the back. The tape monitor should have two sets of rca inputs. One set in and one set out. Plug your cd into the tape monitor/in set of rca. Make sure when you play your cd, you push the tape monitor button in or to on. You may also want to switch the tuner (aux) versus the cd (tape) inputs depending on whether you use the cd more or the tuner more. Enjoy.