(1) Actually, Lasfit LED bulbs can work well on most vehicles and the they won't need any warning canceler parts. Are Lasfit LED bulbs plug and play?. Do I need any modification?. Our LASFIT Tech's are here to serve you.
The instructions warned that the heat sink gets very hot, attach it to a metal surface. In my Jetta, that would be very difficult with the length of the wires provided.
Other than that, it plugged in easily and ,so far, works fine.