Clio 2007 Mk3 AUX and USB issue

[ConnectQ]

Recently I bought a 2007 Renault Clio Mk3 ripcurl. In the glove box it has a AUX and USB connection. I enabled AUX in expert mode and then put it into AUX mode. I pulled my iPhone into it and tried to play some music but it didn't work.
Here is an image of what the box looks like:

 

[Sean6545]

That's a tune point, a factory option. It should be one of the source options when you press the source button. It works as a cd changer.

 

[ConnectQ]

Hmm are you sure it's compatible with iPhones via aux? I did what you said it displayed track 99 on the display but no sound came out?