Cigarette lighter - Impala Tech
Interiors Upholstery & Soft Trim

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post #1 of 3 (permalink) Old 04-28-2014, 12:34 PM Thread Starter
Join Date: Apr 2014
Location: New York
Posts: 55
Cigarette lighter

Hi everyone. I have the dash of my '64 tore apart because I'm waiting for some new parts to arrive. I have the cigarette light out and I know there is a heavy wire that goes to it on the bottom. I also saw on the outside of the casing a "prong" and I'm wondering if a wire also goes to this?? I'm thinking maybe a ground?? I don't recall removing any wire from it and I don't see any extra wires floating around in the area. Does this cigarette lighter only take the one wire?? Thank you.
Carmine is offline  
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post #2 of 3 (permalink) Old 04-28-2014, 04:20 PM
Join Date: Jan 2006
Posts: 12,376
In almost all automotive wiring the car body is the other or ground wire. Steel is a rotten conductor of electricity, but it is free, so the factory uses it frequently every chance it can. That is why there is only one wire powering most devices. The prong is a power tap for anything that needs a 30 Amp circuit that doesn't go through the ignition switch. Since your alternator only outputs 37 Amps wide open you can see where that would be a health battery drain if you where to hook that prong up to the ground.

It is a great source of power for a power bus of your own making to power things like an aftermarket radio that has an internal clock and as such has to have power all the time to remember your favorite push button station settings or the aforementioned digital clock.

Big Dave
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post #3 of 3 (permalink) Old 04-28-2014, 07:19 PM Thread Starter
Join Date: Apr 2014
Location: New York
Posts: 55
OK. Got it Big Dave. Thank you kindly.
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