I did a quick search around and it seems that nobody has covered this. Has anyone found an add on that allows bluetooth (to use phone and listen to audio) for use with the RAZ CD/ tape unit? I see some FM modulators, but I like the stereo and wouldn't want to loose any quality. I know there is a plug not used in the back (for expansion?). I really want bluetooth, but would settle for a small aux. input too. Thanks!