I already have the cluster in the car and working. Well, everything but the temp. I have already searched other forums and I know it "cant be done with out the RSX ecu and multiplexer". Forget all that. I have figured out a way to make the temp gauge work if I can find what I am looking for.

Basically the EG temp is a variable ground. Tha RSX temp gauge is looking for a variable 12 input. 0-12v. Does anyone out there know of such an item that will take a variable ground input and convert it to a variable 12v output?