garthruss

hi i am looking for a wiring diagram for a sierra 3500 specifically rear end of frame connectors. chassis vehicle w no box/tailgate. have purchased an oem tailgate camera and programming module. have 2 wires connected to end of frame connector. dont know where other 2 go. i have no backup lights yet, perhaps wiring from these would trigger camera? having trouble finding a diagram of this area thinking maybe a sub harness missing? local dealer has been no help after the sale. thx garth

i have this module from obd genie to reprogram but apparently i need the backup lite switching to complete it. need to know where the 2 wires connect to the frame harness since i dont have a box.

hi i have a 2020 3500hd 4wd chassis. as is no box rear bumper just cab and frame.i added a cargo platform. installed an oem backup camera. it has 2 plugs. 1 plugged into the rear of frame junction. it has a smaller 2 wire connector. im assuming this goes to backup lite connector somewhere to activate the camera. i have no backup lites. anyone know what connector i can splice into to make it function? having a tough time finding any usable diagrams online. local dealer has been no help. thx