Delco 2700 etr

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Royal

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Picked up my 2 nd square body in Carlisle this year 83 c10 short bed , trying to save the old delco 2700 etr stereo does anyone have a diagram of wiring. There are 3 pigtails that plug-in. 1- black 1- blue 1- white plus one pair of wires comeing out with connector
 

Doppleganger

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bucket

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They are the normal connections and pinouts used in most GM cars all through the 80's. A newer style connector was not phased in until '89 and it was only in select body styles.

The only thing different with these radios in question was the connector with the constant 12v and dimmer wires (brown and orange). It was a narrow body connector compared to other GM radios.
 

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