For the last few months my Line-In option has not appeared on the AUX options. It used to work perfectly fine. Today I removed the stereo and checked all of the wiring, everything appeared to be normal. I have tried to search the internet for others with this problem but has come up empty. Does anyone know anything about this or how to fix it?

Stock Shaker 500
AUX 1, 2, 3 still appear

 

Shakers are shaky..... Have you tried the obvious? Reset the battery?

 

Doubt battery would have an impact on this.

You can view your head unit DTC error codes by listening to AM/FM and pressing/holding the 3 & 6 preset buttons to enter speaker walk-around mode.

Press preset button 2 and the head unit should display DTC errors - post what you find in here and I'll look it up. After you write them down you can press eject to clear the codes (doubt that would do anything tho).

 

haha shakers are shaky lol

 

Yes, I replaced the battery. I also left the stereo out overnight (I read on another forum that might reset it).

I did the Radio Config and it said DTC Found, and I did the Self Test (button 1) and it said Test Failed. I hit eject and cleared the codes, turned off the radio and turned it back on, and everything went back to how it was (DTC Found/Test Failed).

Thanks for the responses. Please keep thinking and trying with me.