[s-cars] Squealing chipmunks (in dash vent)

[Robert Myers]

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Hi Y'all,

My urS6 has started to develop an annoying squeal which sounds like 
it comes from the little cabin air temperature sensor under the 
little grille to the right center of the dash.  The chipmunks go to 
sleep if I stop the HVAC blower.  I suspect that if I could get some 
decent lubrication in there that my problem would be solved.

So what's the trick?  Just spray some Kroil into the grille opening 
and hope it gets to where it needs to be?  Or pull the entire dash to 
get to the chipmunk nest?  Or?

Bob