Oasis fan motor

[Webz]

Last night, the fan for the Oasis heater register started squealing. It is the one with the 3 speed motor under the dash.
Has anyone removed the fan and/or the register?
I'm hoping I don't have to remove the the dash. But it's not looking good.
The fan is on the backside.
Any help is appreciated.

 

[Webz]

UPDATE.
Got the lower dash removed but I don't see the fasteners holding the register to the floor. Maybe they are in the generator compartment?
Didn't see any fasteners in the generator compartment.
Call Newmar, got hold of Rick, he didn't know where the screws were located but he assured me it was screwed and not glued. He is trying to contact someone who knows but they are on vacation, as it should be.
Best part is the cold weather has passed us for now. We will survived without the one registered working.
Still haven't figured out how to remove the motor or register.
But, I did lubricate the motor and turn the heat on. Motor makes very little noise. I'll be at the mother ship in March for some paint. I'll pull the lower half of the dash again and ask the tech how to remove the motor. Once I get the motor out, I'll take it to a auto parts store or a heat and air place to get a replacement. Newmar wants $254.18 for the motor alone or over $750 for the motor and register.
I hope I can do better.