Greetings to you from from Finland

i have a problem with heater fan motor, in winter it keep whining sound (squeeks).
I would like to put some oil to the motor bearing but ,i do not know where to start
heater system disampling.
Under dash in Fusion you can´t see any object that even looks motor
or part of it.
So i need some good advise or some pictures, "blue prints", or something....

Thank you