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Stereo Install

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#21 defiantclass1



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Posted 15 January 2010 - 09:44 AM


I just wanted to add some additional info I figured out.

When replacing a stock stereo in a 73 (at least this is how mine is), the constant wire color is blue. It connects to the red wire coming out of the stock radio. This is a stand along wire (meaning it isn't coupled with other wires inside a connector block)

The acc wire is also blue and it is one of the 3 wires bundled in the 3 prong connector that connects to the radio. The 3 wires consist of blue, blue/white, and blue/red. I don't know what blue/white and blue/red do, but the solid blue is the acc, which would go to the red wire of the new stereo being stalled, per Pauly's instructions.

These were my findings at least.

#22 Zedman240®


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Posted 15 January 2010 - 09:50 AM

A quick check with a test light, and while connected switch the igntion on and off will confirm if it has power with the ignition switch. A test light is a usefull tool needed to connect a stereo...check also for permanent 12V too. $4 from any auto place.

#23 matt drago

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Posted 16 January 2010 - 07:02 AM

I think the triple block with the blue, blue/white and blue/red might be:

blue - radio acc line
blue/white and blue/red for the power antenna.

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