08-14 to 15-20 Escalade Taillight Upgrade Harenss

This harness is for those with a 2008-2014 Escalade and have installed the 15-20 Escalade taillights.  This harness allows for the new light to fully function in your 08-14 model.  Please make sure that your new lights come with the new harness on them, as it is needed for the conversion.