Even the aftermarket forks squeak. And worse, i had a severe clicking noise too when extending the forks to fully open (holding down the front brake, pushing down and pulling back up towards you).
This was solved my changing the preload in the forks (Matris).
I tried the dealers demo bike (OEM) and it too squeaks and sounds like the fork internals are rubbing inside.
still waiting to hear back from dealership about getting it replaced as i mentioned it to them during my initial 500 mile service (which was about 4 months ago), and they actually were stumped on what was causing that noise. one member suggested it may be related to the gators/covers. anyways, the dealership said it wasn't a safety concern so it may take a long time to get authorization to fix it under warranty (if it needs to be replaced).