Consider the question closed folks.
I found that the problem with the cabin
lights were the mini toggle switches themselves. Seems 4 of them decided to quit at the same time.
I found similar sized switches at radio
shack, cut off all the old ones and soldered in the new ones - presto! Cabin lights!
Now I can look for LED replacements
at my leisure... might even give the funky G4 LED thingies a shot!
Anyway, thanks for reading & trying to help... greatly appreciated!