So I have a gen1 montero with all red tail lights and want to swap to tail lights with a seperate orange lens for the turn signal. Problem I have is that the brake and turn signal current comes in on one wire. I need to seperate the signals and am wondering where that happens? Anyone know or do I have to follow the wiring? (I'm guessing its at the turn signal switch unfortunatly)

88 Montero, StarQuest turbo, Kormex 5speed +tuff-pan w/phoenix f. stage2 clutch, 4in lift+33' tires, 4.875 lsd, short-throw shifter, Aisin hubs, SR big brakes, gen2 uca's, elantra alt, and so much more... 16g turbo w/hardpipes + 4.90 locking disk-brake axle soon (maybe lsd or aussie front??)