I have a 2015 Optima and I am wanting to put in LED headlights, but for some stupid reason Kia decided to use a bulb (H11a) that has to attach to the housing with the socket instead of the bulb itself. I have heard that there are adapters to connect the led bulb to the housing, but I don't know which one to get. I bought some off ebay that were suppose to work, but couldn't get them to stay securely. Does anyone know which adapter works best and how it actually works? Any help is greatly appreciated!!