My A/C compressor on my 2010 S5 is making a super annoying scrolling squeaking rubbing sound. I believe the OEM is made by Denso but one can also go with Nissens. That's what I know so far.

What's the move here as far as getting a replacement? Is this part shared across many Audis and VWs?

Any help is much appreciated. I'm sick of that sound but $1800 for the part alone from the dealer is obviously quite out of the question.