The lights of the dash gages of my 79 vette were pretty much all burnt. I though it would be cool to replace with them LED light. I pull the dash and the console and replace the dash bulbs with LED. Now the console gages (oil pressure, engine temp and voltage only work when I turn the car lights on ....??? Just on day light, the console gages don’t work with the exception of the gas tank gage. I read stuff about the polarity of the LED. Are the LED compatible with the C3 electrical system ? Or did I only f/up the 30 years old printed circuit in the back of the console in removing the old bulbs and re-installing the new LED ? Thank you.