How to remove the vent grille (the windshiled washer one)?

[rogerkiu]

Hi all! Recently I found clicking noise from the hood and finally I found the source of the clicking sound. It is from the vent grille. I found that some mounting foot of the leaf grille (not the titan grille itself, but the leaf grille underneath that holds the titan grille) had broken and it made the whole grille loose. When the car is in moving, the whole grille is shaking and making clicking noise. Now I am going to replace the leaf grille, which is the one under the titan grille and it holds the titan grille. Just wonder if it is an easy job, do I need to take care anything during the job? Thanks for help!