It's a amp cover. I
It's a amp cover. I purchased 1 for a rd 1000.1 as well as a rd 1500.1
The rd 1000.1 didn't have the logo installed meaning new.
The 1500.1 amp cover had the logo already attached plus a new logo in the bag.
My guess is the cover for the 1500.1 was used and not new, the cover screws showed some wear but like new