Newbie question???

[BD1]

On some pics & vids for docking phone in car, What is the round plug on top of the phone used for, That they are plugging in?

Thanks Bill

 

[INSANENEIVIESIS]

3 mm headphone jack

 

[Guurzak]

That's the audio (aux) port. It's intended for headphones, but many newer cars have an aux-in jack so that you can feed audio from a portable device to your car's sound system.

 

[grangel]

Convenient

What's nice about it is if you do have a sound system with the AUX-in you can listen to your music or you can use your car speakers as the speakerphone. I asked my wife how I sound and she says it sounds good. The iPhone doesn't do that.

 

[LtKen]

The iPhone doesn't do that.

Of course it does...

 

[grangel]

I asked...

The iPhone doesn't do that.

Of course it does...

I asked my friend that has the iPhone and he said he couldn't do it. He might have been doing something different.