ramjet

Right on the money! That was it. Radio's banging out the oldies on AM like it was 1970. The thumbnail's a keeper. My original has a similar schematic, but yours seems a bit more detailed. What manual is it from? Now about these dim instrument lights...I've cleaned the little green lenses, replaced the bulbs & replaced the rheostat. Poor ground?

This is my first post, so don't be too tough on me. Early '70 Z Serial 01769, original owner, stock, except Petronix points replacement module. Even have the original AM radio. Here's what I've got: Where: Among the wiring bundle located under the dash, passenger side, wrapped in the snap-on vinyl cover. What: A WHITE/black wire connected at one end to a three-terminal white plastic connector shared with a GREEN/yellow and a YELLOW/green wire. This male connector is inserted into a female that has a WHITE, a WHITE/black and a blue wire. Problem: One end of the first-mentioned WHITE/black wire is adrift, hanging. The only thing that has stopped working is the radio, but the electrical diagram in the shop manual doesn't indicate any WHITE/black wire related to the radio. What I've checked so far: 1.The condition of all fuses. OK 2. Front and back of the fuse box. It's pristine. 3. Charging system. OK 4. All instruments including clock. OK 5. Hazard flasher. OK (This IS connected to a W/b wire, but apparently a different one). 6. All lights, signals, dome light, glove box light. OK. 7. I'll check instrument lights when it gets dark, but I think they're OK. Question: What the blue blazes is the function of the loose wire? Thanks for your patience with a blundering amateur.