We have been having problems with our NEX since shortly after install. It will run pretty well for a couple of weeks and then start to periodically crash when CarPlay starts. Another thing that happens is sometimes the head unit won't start for a minute or two after being powered up. Doing a full reset seems to sort it out for awhile and then it gets flaky again.
Our dealer insists none of this is normal and have offered to either replace it with another 4100 or Kenwoods new DDX with CarPlay.
Does anyone have experience with the Kenwood head unit?