Utah-Clay Posted September 19, 2019 Share Posted September 19, 2019 I want to hook my backup display and camera to come on when I put the beast in reverse. I have the camera tapped into the reverse light at the rear but the display is presently in the cigarette lighter. I would like to tap into the reverse circuit in the cab or on the transmission but I cant find where the switch is located. I looked at the service manual but I couldn't find any indication of the reverse switch. Any ideas on where I can tap into? Quote Link to comment Share on other sites More sharing options...
fred heath Posted September 19, 2019 Share Posted September 19, 2019 1 hour ago, Utah-Clay said: I want to hook my backup display and camera to come on when I put the beast in reverse. I have the camera tapped into the reverse light at the rear but the display is presently in the cigarette lighter. I would like to tap into the reverse circuit in the cab or on the transmission but I cant find where the switch is located. I looked at the service manual but I couldn't find any indication of the reverse switch. Any ideas on where I can tap into? What year is your rig and what type of transmission? Quote Link to comment Share on other sites More sharing options...
Utah-Clay Posted September 20, 2019 Author Share Posted September 20, 2019 Duh... 1992 3.0 V6, Auto trans. I think that is the A340? Quote Link to comment Share on other sites More sharing options...
Derek up North Posted September 20, 2019 Share Posted September 20, 2019 This might also apply to yours. Quote Link to comment Share on other sites More sharing options...
frontboat Posted September 20, 2019 Share Posted September 20, 2019 Yes would be helpful. I set up a gropro camera but as ran while I was driving I found myself looking at it too much and almost went of the road. Had to disconnect it but if I could wire into the reverse light switch then I could hook it up again. Quote Link to comment Share on other sites More sharing options...
Utah-Clay Posted September 20, 2019 Author Share Posted September 20, 2019 If someone has a wiring diagram including this circuit that would be very helpfull. I could not find this circuit in the diagrams in the factory service manual. Quote Link to comment Share on other sites More sharing options...
Maineah Posted September 20, 2019 Share Posted September 20, 2019 If it's an automatic it on the switch attached to the trans. Quote Link to comment Share on other sites More sharing options...
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