98 Aurora Electrical (Sentinel?) issue

Hello,
it's been ~20 yr since I've been on an auto-forum, so please forgive me for my Oldsmobile Aurora ignorance. It's difficult to find solid information on these out there...
The issue: Flickering lights UNTIL I disconnect one of the plugs on the Sentinel\Lights module 25640703. Another previously posted on YouTube a link to this forum for a solution " (discuss1996_aurora_strange_problem.html). Scroll down to "thumpin455", but my Search cannot find this. And no "Similar" posts seem to provide a solution.

Any assistance is greatly appreciated!