I remember what i DId before

Usually its inside the door sa loob sa baba,

Pag umulan kasi at may dust doon sa windows etc. lahat naiipon sa baba kaya nagakakaroon ng buhangin, better remove the side moulding of the door car and put hose with low pressure on it. and while youre at it, put some grease on the powerwindow cable. (Any cable that can be reach with your hand)