Lately I've had a couple incidences of squealing from my radiator fan motor.  You know, when you are in stop-and-go traffic and the fan comes on.  (BTW, just did a cross-country trip from CA to Florida and back and had some heavy rain; maybe water got into the bushings?)  I figured I would lower spare tire carrier and take a look, maybe spray in some lubricant on shaft bushings.  But it all looks pretty closed up on the motor, no readily available access points (which I think is a good thing for this electric motor in a wet environment); not sure how to address this.
And to get the motor out, looks like removal of radiator and A/C condenser would be required.
I did a search of the archives, and didn't get any help.
Any ideas on how to proceed?  That is, how do I lubricate radiator fan motor?

RichSan Diego