08 f250 aux button

[alexmarnv1]

I recently purchased and installed a navi system of a 09 f250. After installing on my 08 f250 I noticed that there is no aux button on the system. I have an aux connection underneath the navi and my old stereo had

the aux button. What do I do? Please help

 

[Highroller54]

My 09 doesn't have navi but I don't have a aux either but it does have a hdmi port.

 

[uga_dawg]

It's on the actual touch screen. The last media option. Called Line in. See the pic below and ignore the flash reflection.