Hello all, this part fell in the car while closing the convertible top and I can't find where it would go. I've had a look at the parts book but I did not found it. That would be great If you can help me identified this part.

There's a part number on it, i.e. 1298211389kZ but it's not in the parts book.

Thanks

N.B. This is on a 2005 SRT-6 roadster