I have a 1971 P1800 with an oil temperature gauge that's not connected, and I can't find any information about how to connect it. I essentially have a yellow wire dangling in the engine but I can't figure out how and to what it connects.

Any help is greatly appreciated.

 

There's a sending unit screwed into the oil pan on the right side.

 

For some reason, the wire coming from my oil temperature gauge is about a foot too short to reach the connection, so I wasn't sure that was the correct place to connect it. Thanks again for your help.

Jimmy