Go back and check the wiring. I can't see how having extra braking illumination a determent. Since the running lights have a dual filament that might be their function. How do the blinkers work?
Pro Tip:
You can't troubleshoot electrical issues without knowing if there is any power.
I highly recommend getting a multimeter. It does not have to be a high-end Fluke. The Harbor Freight unit on the right has worked perfectly for years. They used to be free, now they are less than $10.00...
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