I made the mistake of not looking at the stock bulbs before ordering a set of the festoon type. It was only until I took the assembly off the car did I notice that the festoon type bulbs are the wrong type. But I already had them and thought that perhaps with a little work I can get them to work. The only modification was that I took the existing wires off the socket and extending the positive wire by adding an inch or so, the negative just a little. I tested the connection before soldering because the LED (unlike the 194 bulbs) requires positive/positive and negative/negative to light it up. I soldered the fetoons correctly (see pic) and made sure that I also oriented the direction of the light from the LED array down and toward the plate. That is it. It was rather easy.