Topper center high mounted brake light
Does anyone know which wire to tap into for the brake light on the center of the topper? I tapped the yellow wire, but it flashes with the left turn as well as the brake light. I really don't want to run a wire from the back of the cab light.
2011 GMC Denali 2500HD, black on black traded!!!
2012 GMC DENALI 3500HD, black/black, nav radio, sunroof, backup camera, short box srw,traded!!!
2013 GMC Denali 3500HD, black, srw, nav, sunroof, power sliding rear widow, high idle, rear camera, b&w traded
2015 GMC Denali 2500HD, black, traded
2017 GMC Denali 3500HD, black, snowplow prep.