Occasionally my truck will not start when I turn the key. Dead. No power to dash or accessories. No amount of messing with the shift lever or key turn pressure etc helps. Just dead. Then, after sitting for some time it will start normally. This elapsed time has varied from just a minute or so up to an hour. This behavior does not seem to be dependent on whether the truck is warmed up or not. I suspect ignition switch. Does this sound reasonable.