I HAVE A 99' DEVILLE AND I JUST PUT A NEW ALTENATOR & A NEW DURALAST GOLD BATTERY . ITS BEEN ABOUT A WEEEK AND THE CAR WONT START I GIVE THE CAR A BOOST AND IT TURNS RIGHT ON ! IVE ALREADY HAD THIS PROBLEM FOR ABOUT 3 WKS NOW,THAT WAS THE REASON FOR NEW ALT.& BATT. WHAT COULD BE DRAINING MY BATTERY ? HOW DO I CHECK ? I ALREADY HEARD OF LIGHT IN GLOVEBOX, FACTORY SECURITY, TRUNK PULL DOWN MOTOR....ANY OTHERS ???