I have 2 Pro-96's still going strong ... and a Pro-94 & Pro-26 (my Pro-34 finally died a while back)....

Look at post #25 on this thread, it describes some internal adjustments you can make to improve reception:
https://forums.radioreference.com/threads/modifying-a-rs-pro96.178696/page-2

And look here for info on repairing the antenna connector.
https://forums.radioreference.com/threads/pro-96-loose-bnc-connector.177979/

Good Luck!