How do i plug my mp3 player into my car

How do i plug my mp3 player into my car?

How do i plug my mp3 player into my car?
(source: cnet.com)

Many aftermarket stereo head units include an auxiliary input right on the front panel. All you need is a 1/8-inch male-to-male adapter cable to hook your MP3 player up to the head unit. Of course, you won’t be able to control your MP3 player from the head unit–it will only amplify the audio coming from your MP3 player. You will need to use your MP3 player to select songs and control playback. Many Aiwa units include an auxiliary input.