Originally Posted by Rocky TFS
Could be either one. Definitely put an earplug in there as Emmbeedee showed, in fact put in two for good measure! You didn't say whether you have power direct from the battery or switched. I prefer direct, since it eliminates several potential problems and I don't seem to have any problem remembering to remove it from the mount when I get home or into camp. I generally don't leave it in the mount even for lunch stops unless far from civilization.
The unit is incredibly sensitive to current variations or micro-second interruptions, so checking every connection and making them as secure as possible is a very good idea.
I'm hoping the earplug under the battery cover will do the trick.
I have the rugged mount, so I'm direct wired. I elect to keep power on every time I remove it from the holder, then do a manual shut down. No other problems.