I have an 05 2500 and my rear locks don't work, windows wont roll down from front or back, and my rear door speakers don't work. On both driver and passenger side.

I'm not a hundred percent sure if this happened all at once or over time. I am pretty sure the speakers quit before the windows, but locks and speakers might have happened at the same time. The rear drivers window quit first then a few weeks later the passenger side quit too. The fronts still work fine. I thought the window switches were bad but it seems strange for them to fail so close together. I haven't started throwing parts at it yet.

Is there a wiring harness to the back doors that might have worked loose? Any ideas where to start?

 

You might check the plug that goes into the door at the boot....i believe there is one there.

 

Most likely cut wires. When I was in there to look at my dead speaker, the wires were cut, and the rest were bare about to be cut. There all happened in the black boot, easy enough to take a look. Sure fun eh? I now have a problem with my front switch