I have triple pillar gauges. Oil pressure, oil temp, volt meter. Now with the oil pressure, I had to disconnect the original plug that works the idiot light for oil pressure from factory. You know the light that says oil of it senses something wrong. I had to disconnect that plug so I could plug my oil gauge in. Is there a t-block where I can use the original idiot light plug and my oil gauge plug at the same time. And if so where could I find one? I have a 2004 cav.