Shellbell

Hey guys, my driver floorboard is all of a sudden wet in my 98 Mustang. It's been raining non-stop for days and just noticed it wet a few days ago. Windshield was replaced last year. Door, dash, nothing up top or sides are wet, just the floorboard, i can't tell underneath if there is. Since it's been wet the chime stays on when my lights are on now, was thinking maybe something with the wires if it's leaking somewhere?? Help! Thank you