Thanks- my wire colors are grey (which I believe is illumination)-pin 2, yellow-pin 4, green-pin 3 and white-pin 1. When I put 12v to grey and ground to yellow, the bulb lights. I can't get the LCD display to come on regardless of which wires I apply power/ground. I'm starting to worry that when I soldered the LED and Resistor on the board, I messed up the board and killed it.

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