This is strange but I have a 3 week old 900BT that has been working fine. Today I turn my car on and the Pioneer screen comes on for 5 seconds, then there is a thud in the speakers and the whole unit shuts off. I pressed the reset button and it does the same thing over and over. I have NO hardware or software hacks on my unit....I didn't want to hack the radio at all just for reasons like this and I am glad I didn't at this point. Any idea what this could be?