If you lift the hood,there is a seal on the front edge of the firewall and a plastic grill, you could also remove that grill and look down into the air intake box for any places some caulking could be cracked in the corners. When you do the water test...remove the plastic pillar cover that goes down the side of your windshield to your dash. When they leak, they run down the pillar behind that plastic cover and down behind the dash.
