If you are going with the 4th brake light option, here's a few things to look over. I just did the 4th brake light mod to the OEM light assembly and a week later installed the Valenti 4th brake with a mod to not have it blink while braking. Enjoy!
http://www.ft86club.com/forums/showp...ostcount=14245
http://www.ft86club.com/forums/showthread.php?t=105833