Illuminated keyhole - GM style

[gdouaire]

electro lamps or 'electro luminescent lamps' can be used instead of salvaging these older keyholes which used lower quality E/L fluid of their time and won't last very long used.

These locks are illuminated via optic fiber - not sure what the E/L you're referring to is.

 

[gdouaire]

illuminated.

 

[pencero]

take an R out of a buick Riviera and you will see how it works instantly the EL is just the fluid the two wires lead to it is very similar and lasts much longer it's EL lamps