I have a 2006 ford taurus, I changed the alternator about 3 weeks ago, charged the battery all has been good until today. I take my car a short 3 block trip down the road, started just fine ran good, came home went to leave again and my car wouldn't start at all....gauges clicking i know probably doing a self check. It runs fine after its jump started but can't shut it off or it won't start again. So my question is. Is it the battery? The starter? Or grounding issues? I'm stuck...