[VetteVet]

Originally Posted by ray_mcavoy

Just in case anyone is wondering, that other stud (on the far right in lutronjim's first pic) is basically an intermediate connection point between the external resistor and the gauge's internal coil. If 12V is applied there, it bypasses the current limiting resistor and pegs the gauge.

Also, the stud on the left (the one that is used for the +V connection) does not have any direct internal connection to the gauge. It simply connects to one side of the resistor. So this arrangement puts the resistor in series with the gauge's internal coil.

Thanks Ray, Yes the OP did ask that question and I thought it was connected to the internal coil but I couldn't find any confirmation of that so I couldn't answer the question.