Playing songs on my MP3 Player in my car: help pls!!?

[Killer Queen]

I have an MP3 player and ik wanna play it in my car: how do i do this?? Do i need to have an MP3 compatible stereo?? Can anyone shed some light on this please? Thanks very much

 

[cherrybaby]

you need to have a line in, it's the AUX and get a cored...
or you can get the tape player kind that you put in the tape player...