I have a 2014 fx/4 that I tried to put in the LEDs from superbright in my dome and map lights. When I put the map ones in i got a spark which blew fuse #4. I replaced and put the oem bulbs back in and now they don't work. The vanity lights are working which is off the same fuse. Any ideas what the problem may be?

 

You may have shorted the assembly. I did that in my 08 Navigator and had to switch the assembly out. F'n annoying. Good luck