I cant comment on the squealing aspect save to say in Sept at a Longreach Property this year I had abad case of squealing all around for days and then the permanent 3 amigos. Never before had a problem. Purchased nanocom to clear and fault which stated FR error. Resistance checked, cleared and do date I cannot get one fault logged in my case and of course by the time back to Brisbane all the squealing had stopped.
So the squealing comment could be right as this is what happened in my case.

