I have an 04 cavalier. Last year I had a triple gauge set put in my car. oil pressure, oil temp., and volt meter. Now to get the oil pressure gauge working I guess they had to disconnect the original plug or wirring that went to my dummy light on the original gauge cluster. Is there a way where I can get my oil pressure gauge i had installed and the idiot light to work at the same time. When my wife drives the car she never looks at the gauge pod. And I would like if the oil pressure light would work incase something happens when she is driving. Is there a such thing like a tblock where both things will work? I was told there are but not for an 04 cavalier. Thanks