My aux cord port in my car does not work so i was super excited to get this because I'm tired of burning cds. However, when I havr tried to used it it shuts off after about 3o secands. I habe not gotten through a single song. I am not sure why it is shutting off. I have and 07 Acadia and an lg phone that I paired with Bluetooth. I will give it a few more tries to see if I can figure out the problem .