Why won't my Galaxy S5 play through AUX in the car?

A

AC Question

Galaxy S5 won't play through AUX in the car

I don't have bluetooth or a USB port, so I'd like to play the music on my phone in my car through the auxiliary cable. But whenever I plug it in, I get a notification on the phone that says headphones have been connected, and I get no sound through the car speakers. I can't find a setting to change this.

I know it's not a problem with the aux cable because that works just fine when I plug and ipod into it. Meaning it then plays through the cars speakers. Now I just wish my phone would do the same thing. Any advice?