Radio Wiring Harness Diagram
 

The radio in my 2012 Caravan stopped working so I am going to replace it with an aftermarket one. I am trying to do this for cheap so I am looking to do a lot of work myself.

I've been looking around for the radio wiring harness diagram, but I can't really find a reliable one. Each one I find says something different. I am also confused with whether my caravan uses a CAN bus or a PCI bus to communicate the steering wheel controls to the radio (I want to make an interface to preserve the control functions).

Does anyone have or know where I can get a wiring diagram for the radio wiring harness? As well as does anyone know about the communications between the steering wheel controls and the radio?

Check out crutchfield.com. Their head units come with all the adapters and wiring harnesses you need so you don't have to hack up the factory wiring.