Today the electric aerial decided it didnt want to work again so went stripping the back apart to get at it. While doing this I noticed that the interior lights had stopped working, now I had replaced these with LED bulbs and they worked fine, until today when it blew the fuse. I replaced the fuse and it blew again! I removed all of the bulbs and inserted the fuse, it didn't blow. so proceeded to replace all of the bulbs until I found the culprit. Turns out one of the LED's was faulty, so replaced it. now all of the courtesy lights in the cabin will not go out at all, or even dim, even with the doors closed and standard bulbs put back in! Is there a control unit that controls the interior lights that could have become damaged? and if so, where is it located?