Decided to clean up a couple of earthing points and found two snapped off with just the washers(?) left but I couldn't see any dangling wires that might connect to them. Someone's redone some wiring here before, so just want to make sure it's been done right. This is on the top of the drivers side inner wing. Can someone please take a look and let me know how many wires should be earthed here and where they lead to. I found 4 earthing washers in total, but only two of them had wires connected. All help appreciated.

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they are for relays