Dimming Dome Light

I am trying to locate a car that has the delay dimmer built into the dome lamp assembly.

I have a 64 chevy that I am finishing up the wires and replaced the original halogen bulb with 8 LEDS in the dome light. I just want to yank a module out of a junkyard car but need to find out which cars have them.

I want it to be simple; i have seen the diagram for it floating around on the internet. 

james hatfield

https://crash.to/elcamino

ebay id jhatfield805

you can use the constant to momentary relay diagram on this site. https://www.the12volt.com/relays/page5.asp

instead of having the cap and resistor on the ground side put it on the postive constant pin 86 wire,  wire pin 87 to constant, pin 85 to a negative door trigger, and pin 30 will be your dome light output.  As the cap drains the light will slowly dim.

you may be able to achieve the same results using the only the resistor and cap wired into the dome light wire itselt.  Cut the wire and place the cap and  resistor  (parallet like the diagram) in line.