How to play music from my iPhone to my cars stereo?

There's an audio jack in my car yeah but I don't know what the thing is called to where you hook it up to your phone or where to find one. Or how to do it exactly xD so help please, I have an iPhone 4s. I ask this because I hung out with someone who had this type of thing in his car, the cord was like lime green lol

You just need to buy a cord that has a male 3.5mm audio jack on each end.

Plug one end into the car stereo, other end into the phone, set the stereo input to "axillary" and turn on the music on the phone.

Any store that sells electronic equipment will have a 3.5mm audio cord, it should only cost a few bucks.

Do you have that usb plugger from the iphone 4s it should come with it! And you just plug it. Umm you can ask any of your neighbors that have iphone 4s! HOPE THIS HELPS

Aux cable. Rly cheap n easy to find.

If your Head unit has an AUX plug on the head unot plug the cord into it, then the other end in your phone's headphone spot

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