rain water leaking in

04 rl, nav

have had this car for several years without any water (from outside) leak-in. in the last couple of months when the car was in moderate rain, i noticed water under the glove cmp.

took the glove comp out, found water underside of the blower.

took a/c pollen filter out and the filter was wet.

so it appear rain water is getting into the air intake for the heat-ac system..

cannot find any obvious breaches of gaskets. the plastic shroud at the lower edge of the windshield and associated rubber parts are intact.

any clues??

thanks