I cant get it to play nything,somtimes it plays cds,usally fter I mess with it for bit,then after playing a CD it shows the E-04 messege or the E-02 messege,I hve no idea wht either of these mean but I know its not playing cds,its ten disc changer and plays mabey two of the 10 cds.The remote doesnt work very well either.Any ides?