Hi @makaharon ,
Don’t know the answer but here’s a [https://cardiagn.com/2008-ram-truck-factory-service-manual-pdf/|link] that may be of some help.
It is a large download but as it is the complete repair manual for your model the answer should be in there.
It should have electrical wiring diagrams etc as the repair manuals usually do.
Copy and paste the ''http link'' shown into your browser and go on from there.