So my mazda A/C request wire supplies 12v all the time and drops to .05v when depressed. I need to somehow wire a relay so when I press my A/C button I have a ground signal to send to the GM a/c request wire. 30- 12v 85- ground 86- mazda a/c request 87a- To GM request, I'm still seeing 12v at 87a when the a/c button is pressed. Is the relay wired correctly in order to reverse the polarity. I'm not hearing a click when I press the A/C button. Bad relay? I had one of these wu tang ti relays fail on my fuel pump a while back so thats a possibility. Constant Voltage at 86 also drop significantly when I connect it to the mazda wire, ground issue?