02 T&C alternator squeaking?

Is yours a 3.8L like mine? I had a squeaking sound too a few years ago, that I thought was around the alternator. Changed it with a new one off ebay (~$110) and same noise. I think I then changed the serpentine belt and no more noise.

One quick test is to spray water on the groove sides of the belt and see if it quiets down. I saw a video from Gates on YouTube about that. They were talking about checking for mis-aligned pulleys. Unlike our single V-belts which allow 1/8" mis-alignment, serpentine belts are very fussy.

BTW, do you know how to get that strange pulley off? I tried so I might fit a V-belt pulley to my old one to try on my A-bodies, but couldn't figure the trick. I pried real hard. I see no screws to remove.