Where does this go?

hey guys i decided to install parts of my grill on the cuda and i came across this piece and was wondering where does this go, i presume under the grill part:

here are some pictures of it together, i am making some patches for my fenders in my auto body class now, i am waiting for the lower rear fender patches from paddock as of now...they are on backorder :cwm10:

http://img135.imageshack.us/img135/5980/side0df.jpg