This is what I would do:
Get a 3157 socket base for the inner and wire the new 3rd wire to the outer's brake light. Then remove the night running light wire from the outer and splice in the turn signals.
It probably would be best to heat shrink the end of the night time running light too because it still will be hot when your night time running lights are active.
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Hit a dear! Back to stock 3400... For now
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