C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Aug 31, 2021 | 05:46 AM
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Does anyone here know where this light suppose to clip into? The wires are black and gray. I know its a dome light but not sure where it plugs in to. My car is a 77 vette 4 speed manual. Wire in right under the shifter

the light

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. Here is a picture of it. maybe ash tray light? I can't find the hole anywhere? Thank you everyone for your help.
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Old Aug 31, 2021 | 06:04 AM
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Do you have a late build 1977?
If so ALL main dash harnesses were built the same, both manual transmission and A/T transmissions.
I have a spare late built 77 dash harness that came out of a manual transmission car and it has that light socket.
If you had a A/T transmission it would illuminate the gear selector position window.
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Old Aug 31, 2021 | 06:11 AM
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It's not on the dome light circuit, it's on the instrument light circuit

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Old Aug 31, 2021 | 07:43 AM
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I don't know when this car was made. I just want to know if anyone knows where this socket plugs into. It dims also with the headlight switch.
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Old Aug 31, 2021 | 07:45 AM
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okay, but it does dim when I turn the headlight switch down. Its on the same circuit as the other lights that dim like the two lights on the bottom and the dash lights. So, where does this plug into? Do you know?
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Old Aug 31, 2021 | 07:48 AM
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@bmotojoe explained.. often and in my 79..it just sits there.. for manual.
no clue if they put a bulb in originally but i put one in for fun.. and protect leads..
always thought about a use for it..
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Old Aug 31, 2021 | 07:59 AM
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Bottom line. You don't have an automatic transmission, so it doesn't go anywhere.
They use the same harness for both auto and manual cars.
It has a use with a automatic transmission car. no use on your car. remove the bulb and put your console back together.
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Old Aug 31, 2021 | 08:07 AM
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Originally Posted by garykuter
okay, but it does dim when I turn the headlight switch down. Its on the same circuit as the other lights that dim like the two lights on the bottom and the dash lights. So, where does this plug into? Do you know?
You have a manual transmission car.
There is NO socket for that light.
You could always let it dangle out the passenger counsel side panel if there is a ankle bracelet to stare at......
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Old Aug 31, 2021 | 08:36 PM
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okay. Thanks everyone for your answers.
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Old Aug 31, 2021 | 08:56 PM
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Wasn't there a 'map light' on later models which aimed downward from the upper gauge bezel area?
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