I just thought I would ask this .Anyone upgrade their trailor wire to the T-Connector and not have thier Rev lights work . I got the Draw tight package and slipped it in the 5 pin connection and now I dont have rev lights .If I un hook the T and plug it back in normal to stock they work .

This is right from Draw tight .And they said simple as plugging in a extenion cord and one wire for ground .

I had this in the Wire section but I think its mostly Duramax heads.

Thanks
Steve