Hi Guest!
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> Here's How << 
Rick, the only screws are toward the top of the grill. what if you used so non-permanent adhesive - like hot glue, or clear caulk - to hold the bottom from rattling. could be applied from the back or a dab in each alignment pin hole to be invisible but effective.
Hard to see what happened in your pic. Did one of the alignment pins push through the new chrome? If yes, they should probably fix it.