I just purchased an 05 Durango Limited 5.7 Hemi.....it has Navigation system installed and the joystick will not work properly. It does not click when turned, you can only push it in and it will only navigate to the first thing on the screen. You can see a current map of current location, but Youu cannot use the joystick to do anything else. Anyone know about this? I've read many different things.....can this be replaced/fixed? or does the whole unit need replacing? Any ideas?? :confused: