If you’re like most people, you probably listen to music in your car. And if you’re like most people, you probably use a CD player to do so. But what if you don’t want to use CDs anymore? What if you want to use your phone or an mp3 player instead?

If that’s the case, you’ll need to know how to use mp3s in your car with a CD player. Thankfully, it’s not too hard. Here’s how you do it.

The first thing you’ll need to do is figure out what kind of input your car’s CD player has. There …