Aux input doesnt work???

Tested the cable in another audio device?

Are you selecting the AUX button on the radio face? Start the song on your phone, turn the vol up a little on the radio, and see if you hearing anything.

If the car is not running...do you have the key turned to the "on" position? ...so you are getting pwr to the radio.

Just a few things...

Having the same issue with my GT premium 2008, Any help?

Same problem in my 07 GT. Good cable; power on (car running); Aux button pressed and "Aux" selection confirmed on radio display. Nuttin. I do get 3 "Sat" bands of Sirius on Aux though.