Thank you again, I have done what you suggested and I traced the sound to the double joint. This is what realoem shows for my car (Item 2).
http://sdrv.ms/18d26Tq



When you said the plastic pieces, are you referring to Item 2,3, and 5?
http://sdrv.ms/18d2cKW



For some reasons the images are not shown. So, I included the web address.