I have a new Garmin 546s chartplotter and I can't get the main center plug on the rear of the unit to unplug.
The twist lock only turns about 1/4 inch and no matter how much force I tried to use to unplug the plug it won't come out.
It is almost like it is glued into the plug on the unit itself.
I know this sounds silly but it sure does have me stumped.
BTW I have had the unit plugged in and unplugged about a dozen times so I know how to use the twist lock on the plug.
Anybody have any ideas?