I tried replacing my climate control lights, but they won't light up. I used neo-5bhp LEDs which fits in the bulb slot. But nothing happens when I turn the lights on. Any help would be great.

I lost the old bulbs/connections, they fell behind the HVAC, they didnt work anyways, I have #74 LEDs coming with new connectors, but I don't know if placing them in will solve my problem. Which fuse slot is for those lights? I'm guessing 19.