I have been searching for a paint code for the cladding on my '05 Base with body color 040, Super White II.
You can download a PDF from Sherwin Williams of all the cladding/bumper colors that coincide with the body color:
Download and print or save to your desktop for future reference—Compatibility Guides to adjust just about any OE color and Global Color Manuals dating as far back as 1958.
According to the SW website the cladding color is 1D4, Titanium Metallic. I haven't been able to confirm this correct but it looks right.
I have new rear bumper corners which I'm going to try to paint. Apparently I need a plasticizer to add to the paint. If anyone knows anything about adding plasticizer to the paint please respond.