So this year I want to add a temp gauge. Looking to use an electronic one not mechanical. So far I see 2 methods. One remove the sensor for the idiot light and install sending unit for a gauge, 2- Put a T of sorts in upper rad hose, install sender there, and leave indicator light intact. I've never done a sensor in the upper hose though and wonder about efficacy. Or is there a second plug in the engine I can install a sensor in? It's a G2160 with a D782.