Using a megger is a good way to blow up any electronics. I would pass on that. Granted the M body in question doesn't have as much electronics as later model stuff but odds are good his Fitech and radio would be kaput unless isolated.
Odds are pretty good there is a disconnect in the kick -panel to unplug the spotlight.
Oh yes, I was certainly advocating using the 4000 volt setting on the the Biddle, not the 20 volt.
My favorite setting is the 1000 volt setting,
which will bring earthworms up out of the lawn.
