Currently im using my ipod shuffle with a Panasonic tape adaptor in my car....the sound is very good and crisp and goes louder than any other source (radio/cd) because the vol on the ipod is raised while the H/U's vol is lower.

Id like to keep using this but will it in time wear out my tape deck since the tape is always turning? Its used everytime the car is driven. I also keep the heads clean.