Oil sending unit wire broken question
 

I noticed our oil pressure sending unit wire has come apart.
I have gone through all the wiring schematics and can't find the diagram for the oil sending unit.
Now the 2 wires on the plug side were twisted together and spliced into the one wire going into the harness, to me this doesn't seem right.
I need to reattach these but which ones?

Thanks

Sending unit plug
Attachment 39021

Wires on plug side
Attachment 39022

And the wire it was spliced into
Attachment 39023

The wire that goes into the harness
http://i1303.photobucket.com/albums/...ps66761350.jpg

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