My unit is at least 4 years old V2 and since the last couple of updates, which has probably nothing to do with this problem anyway! It will just randomly power off, I see the light go red and start flashing just like it would if you hit the power button. There is no rhyme or reason when this will happen, driving or sitting still it just turns off then I have to push the power button and it fires right up! Yes I checked the connections and they are all good! could it be my CPU going bad?