WTB LED/Strobe style light

sweet man i appreciate it, once in awhile when its like dead quiet in the truck and you hit the button u can hear it like power on, but i could never figure out where lol so u just pull the third brake light out and what theres a positive and a negative or is it some bullshit GM pig tail that i gotta buy the matching side to?..yeah let me know what ya got on the light…