Harmon Becker BE 7021 repair or drop in replacement

Hi All...

I'm looking for repair info for the Harmon Becker BE 7021

So far there's a few youtube videos. I'm looking for anyone that has successful repaired one or if anyone knows of any repair info on it?

Supposedly they can be swapped out with a Hyundai model for a 2011 Hyundai Equus


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