2 down, 1 to go!
I got the new Fastlane filter installed in the AC. The new filter eliminated 95% of the variable pitch wind noise and whining bearing sound, and the rest is sensitive to position of the center vent dial control. The car records showed that the filter had been changed at the B service, but the appearance of the filter (gray-black, debris, multiple tiny holes and tears that let daylight through!) seems to indicate that it was 'overlooked'. So now the AC sounds like it belongs in an MB instead of a 10 year old Nissan mini PU.
Now to work on the "rear axle" noise. I wouldn't be surprised to see that turn out to be the tread on the Eagle LS tires. I'll try some 16" rims with Yoko AVS dB tires and see what that does.
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E