06' Toyota Prius AUX button not working all of a sudden

I always listen to my Ipod in the car, but about a month ago the AUX button doesn't do anything when I press it the button is like this [CD AUX] but when I press the AUX side aux mode doesn't come on, but the CD side works.

PS, I took those plastic wheel trims off , it looks way better

I was looking on here and found out how to get into system check mode on the display and it gave me these codes for the radio, can't figure out what they mean though. I would prefer to just fix it at home if it's an easy fix, to avoid a couple hundred dollar dealer charge

Any chance that the other end of the AUX cable has popped out?

Thanks for the reply!
Na, unless do you mean like on the inside of the dash ? Usually even when I didn't have the ipod or aux cable plugged in it would go to the AUX setting but not play anything of course. I have a griffen cord I plug into the ipod and into the jack in the middle console

Has this happened to anyone else?

Try turning the devices volume way up. I always have to after using headphones. The button has no sides, push it and the top of the MFD says CD push again AUX.

Ya man, that's what I mean it will only say CD not the AUX on the screen like it won't go to AUX mode at all. Trust me i'm not a total noob =d

I just checked mine. If I unplug the cable inside the console it does the same thing. Immediately switches to CD and refuses to go to AUX. Try working the plug a little, maybe with some contact cleaner. Toyota has a TSB for that part to filter out whine (ground loop) but only for 3yr/36,000m.

If there is no signal on the AUX line, it will not switch.

Having a cable plugged in with no source it is just acting like an antenna. If you get enough noise, you can trick the system to switching to AUX without anything connected.

So I tried to turn the AUX on and today it decided to work ( random ) , could it be the jack in the middle console has a short in it maybe?
Hmm well, atleast it worked earlier, hopefully it does again tomorrow.
Thanks for the replies and feedback very much appreciate it.

Did you have an actual source plugged in?

If it doesn't go to AUX and you have a source plugged in outputting a signal, then there is a problem. In every other scenario, it should not go to AUX unless it picks up noise from the wiring.