Without reading through 152 pages on this topic...
I have a 2016 Silverado 1500 LTZ gas with DL3 mirrors. I just ordered AM-3397687628 from AM Auto to be delivered early next week. I ASSUMED they just plug in and work, but this website leads me to believe otherwise. Do I need to buy a harness adapter from pgamboa? I am an electrical engineer so I am not afraid to modify wiring myself...
Thanks in advance.