2015,Brake light does not work.

I recently installed custom aftermarket LEDs modules for my sonic and the brake light does not work/ light up when I brake. The 3rd brake light works and every other light function works for example tail lights, turn signals, reverse, and emergency blinkers.The only problem is the brake taillights. My brake light switch works, I'm not quite sure on the fuse. I don't think that there's power coming from the blue brake wire when I connect the led module to another power source it lights up just not from the blue brake wire.

My car has 21587 miles.
My car has an automatic transmi