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Old 04-02-2026, 08:12 AM
helmerrock helmerrock is offline
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Default 66-67 AM FM Radio

There is a plug mounted on side of the radio with a light blue wire. What is this plug for?
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Old 04-02-2026, 10:15 AM
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60sstuff 60sstuff is offline
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Quote:
Originally Posted by helmerrock View Post
There is a plug mounted on side of the radio with a light blue wire. What is this plug for?
I think that is the rear speaker lead (blue) wire.

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Old 04-03-2026, 05:13 AM
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Jeff Hamlin Jeff Hamlin is offline
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Old 04-03-2026, 06:11 AM
gto4ben gto4ben is offline
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It's to power the reverb unit. It goes to the harness with the dash mounted reverb switch.
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Old 04-03-2026, 07:53 AM
Carl S Carl S is offline
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Interesting that the wiring for the AM/FM vs the AM is not the same. I've looked at the radio diagrams in the Delco radio manuals but never noticed that before.

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