Yeah, the only things I changed and/or added was the EP27 flasher relay, and the resistor across the third brake lamp wires.

--EDIT--
I should mention that my interior lamps have LEDs, and the fade out works fine. Though there's always a faint glow when the lights are off. (Incandescent lamps wouldn't light at that low of a current)

 

I had the interior glow on my front and rear dome. Ended up buying expensive interior LED's with the chips or whatever and that killed it

 

I did buy Sylvania Zevo Super Bright LEDs for the map lamps. As far as I can tell, they don't glow like that, like the old cheap eBay LEDs did (and those were slowly burning out, because they were 9 years old). $20 a pair at AutoZone (Wal-Mart was half the price for the same bulb). These are canbus compatible LEDs. In the dome, I have two 4x8 LED blocks. Those do glow though, but it does make it nice and bright on the inside of the truck, when the inside lights are on.

 

Thanks for all the help buddy. been trying to figure it out for several months now. I have LED headlights and fog lights, neither of them have any extra adaptors or resistors and they seem to work fine, except, when i turn on the fog lights, the highbeam indicator faintly lights up.

 

Canbus