Anyone Familiar With a Blue Wire w/ Yellow Stripe Along Firewall?

1969383S said

Blue and yellow trace leads me to Electronic ignition +12v to the module in run. Past the ballast! If required.

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Me too. It's definitely light blue and yellow. Usually ecu pin 1 to ballast. Not factory on a 1971 obviously. Hmmmm.
Was this was converted to factory electronic ignition at some point? Where was the ECU mounted?
Maybe some more pictures and info?