what is the differance in the wiring schematics for softail before and after 96. i have a 1991 heritage and want to upgrade to a 96-later style wiring but i would like to reuse my handlebar harness for the 1991 and run the rest as 96. i want to use leds and buy a aftermarket module to use leds as rear brake and turn signal but all the modules i find are for 96 and later.