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Classic Mustang Air Conditioning Harness

The master control is easy to install because plug size and configuration is specific. It's virtually impossible to get it backwards. Blue wires are for instrument lighting-a light-emitting diode.
Vintage Mustang Air Conditioning - Air Apparent

The master control is easy to install because plug size and configuration is specific. It's virtually impossible to get it backwards. Blue wires are for instrument lighting-a light-emitting diode.  View Related Article

 

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