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MikeStang

3rd Brake Light

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Thinking about adding a 3rd brake myself, but not sure about the wiring. Someone mentioned an "AND-ing" circuit?

 

A lot of folks tap into one or both brake lights to wire up the 3rd light. This works, to a degree, except that on cars like ours the brake light is also the turn signal. So your 3rd brake light blinks along with your turn signal (we've all seen cars doing this). The trick is to 'AND' both brake lights together so the 3rd only lights when both lights are on (there are electrical ways to do this).

 

Another good suggestion is to utilize the brake light switch on the brake pedal.

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