2012 Dodge Ram Wiring Diagram | Free Wiring Diagram Collection of 2012 dodge ram wiring diagram. A wiring diagram is a streamlined standard pictorial representation of an electric circuit. It reveals the elements of the circuit as streamlined forms, and also the power and signal connections in between the gadgets. I need a wiring diagram for a 2012 Dodge Ram 1500 I need a wiring diagram for a 2012 Dodge Ram 1500. Specifically related to the Navigation system - Answered by a verified Dodge Mechanic5/5(10) 2012 Dodge Ram 1500 Truck | Stereo Wiring Diagram 2012 Dodge Ram 1500 Truck Stereo Wiring Information. Radio Battery Constant 12v+ Wire: Yellow/Red 2012 Dodge Ram 1500 Truck Speaker Sizes. Audio Front Speakers Size: The stereo wiring diagram listed above is provided “as is” without any kind of warranty. All Dodge Ram wiring diagrams avail here | DODGE RAM FORUM I know first hand how frustrating it can be to do even the simple of things like just replacing the door speakers and not know which wire is the + or the -. I found this somewhere and just had to look at it to change my speakers a few weeks back. I can only hope to help at least one person. follow this link to find pretty much any wiring diagram: How to Install New Audio Gear in 2009-2012 Dodge/Ram Pickups / 2009-2012 Dodge/Ram Pickups (all cabs) 2009-2012 Dodge/Ram Pickups (all cabs) Lift the grille, disconnect the sensor wiring harness, and remove the grille. Next, remove the two 7mm screws securing the speaker, Have a 2012 Dodge Ram 1500. Wire harness for after market radio had a separate red wire accessory wire.