Sorry, not my airplane/audio panel. This was a friend's of mine. I'm
guessing either an avionics master switch or a circuit breaker for the audio
panel was used.
Jim

"Mike Isaksen" wrote in message
news:k%wOi.2636$h33.1129@trndny02...

"Jim Burns" wrote in message ...
Then just for fun I shut off the audio
panel and instantly the 396 locked on.

Jim, how did you shut off your audio panel?