Door leaks

[Davidf]

So, all new door components installed: glass run channel, vent window rubber, cat wishers, exterior glass sweep, and door panel rubber seal. The door panels are not installed currently. Yesterday, a brief heavy rain and I found water in the cab 9no carpet yet. Seems the water is coming in via the exterior sweep (does not contact glass tight, so folds under generally. The water seems to follow window lift arms, bounce off of arm track and into cab via large window regulator access hole. Is this normal? I am thin of install a plastic sheet vapor barrier over this hole before door panel goes on.