Phil, I have 2015 Silverado, LT, 1500, Crew Cab, 5.3L Gas, no seat memory, added K-Source Tow Mirror with power adjust , turn signals, manual fold and extension. They don't have anything else. I just need to wire the turn signals, i checked and their is a #41 pin in the body side connector, no pin in the door harness connector. Can i just take a single wire from the #41 door connector and run it up to the mirror connector to fix the problem. Do you have a picture of the X510 where i need to plug the other end of the wire into. All you help would be appreciated. Thanks Mike