We have 2003 Ford F150 bought about 3 mos. Ago. Drove great for awhile but then hubby went to go leave for work in a.M. And totally dead. We took it to a very reputable mechanic 4 times, They put a brand new battery in it, that didn't work, they COULD NOT find anything wrong with it. So they unhooked the stereo, ran fine for about a month but now it completely won't start til it's charged, goes for a couple of weeks and dies again. Very frustrating as we JUST bought this truck as is no warranty. Can anyone help us on this? Thank you for your time.