Signal mirror upgrade !! Need help - 2014-2018 Silverado Jan 22, 2016I own a 2014 Silverado 1500 with heat and power mirrors (no signals ) and my buddy has 2016 mirror that has signals built in that he is selling and was wondering if they would work on mine. The mirrors will fit but not sure if the signal will work. I dont know if there is already a post about thi.. Need mirror wiring diagram | GMC Truck Forum Nov 17, 2011Heh guys. Does any body out there have a wiring diagram for the left side outside rear view mirror on a 2004-05-06 Chevy/GMC truck or SUV. I've installed fully electric mirrors on my 2000 GMC Sierra 1500. SilveradoSierra • Free online wiring diagrams Re: Free online wiring diagrams Aug 30 2018, 11:37pm Does anyone have a wiring schematic with ecm pinout to share for 92 siverado with 7.4 auto 4x4 k3500 using ecm #1614060 axrd the 1227730 is everywhere but I cannot find the 1614060 for my truck, Thanks for any help you can offer.