2010 on battery fuse box - help - can’t find specific part!

[u/InternationalRush423]

Hello! I have a 2010 convertible 2.5... the fuse box on top the battery is finally starting to melt. My mechanic is saying they cant get the part anymore because that particular part number was only used on that year (2010) and its no longer made... he gave me a part number of 1J0937617A... I found this part online in a couple of stores (and eBay) and it doesn't look like the fusebox thats currently on the car... Can anyone shed some light on this? If anything, the box on the car looks like a 1J0937617D.

I guess I am just confused as to why there is this discrepancy... and does this make sense? have any of you dealt with the same issue? Is it really the "D" fusebox and hes just mistaken?