Sony backup camera replacement

I am replacing the Sony in our PC with a new wireless system.  Can someone tell me the nature of the cable to the existing monitor and camera?   All I need to know, really, is what wires to use to pick up the 12v DC at the screen and at the camera.   I have no idea how many pair cable is used on our wired system, and thought someone might be able to tell me something about the existing camera cable.   All that is required on my new system is just the power.   

I don't know why I have tolerated the Sony for so long, but I bought a simple seven inch wireless system on Amazon for less than $200, got it in, tested it and it works fine for the hundred or so feet I tested it from the front to the back of the house outside.   I have used wireless cameras in the past on RVs and had super results and never had a problem. 

Of course, in all fairness, my PC is a 2013 and I am sure the newer models have better cameras.   

Thanks,

Paul

Sorry I can’t help with the wiring. On my 2011 it went to the rear view mirror and in research I find every manufacturer tends to use a proprietary cables and of course in my case they had discontinued mine.  I installed a halo view wireless. It cost 250 but close to Christmas it was 219 with shipping. I had tried a less expensive model my son uses on his van.  On his van it worked perfect and same on my pc as long as I was stopped or going slow.

I’m happy with the wireless. Wish I had changed mine out a couple years earlier.

May I suggest you take a
voltage meter and just check for power at the pins in the end if the cable?

Joseph   "May I suggest you take a voltage meter and just check for power at the pins in the end if the cable?"

Yep, that was my original plan but I thought someone on this forum might have pin numbers or cable specs.   Thanks, Joseph.  It really didn't occur to me that they would have proprietary cables but that makes sense.   
I'll post later after the installation as to how the new camera operates.   I hard wired a Sony on an rv  years ago and once was enough for that fishing trip. 

Paul