I have some doubts, I would like to thank you for your help. I have 2 sound systems of the jvc brand, the first one is ca-hxz3 model which is from the mp3 cd and the other one is ca-hxz1 model this is not mp3 the cd my question is that the ca-model hxz1 is not mp3 just the model ca-hxz3 my question is if I can modify the hxz1 and grab it mp3 the cd since I have both what I would like to know sile I can put the mechanism of the hxz3 to the hxz1 cren that you can thank your opinion