Do you have the original radio in it now? All digital radios need a memory twelve volt feed wire for the clock and station presets. That twelve volt supply is always tied in with some other circuit that is always live. Chrysler almost always used the interior lights for the memory circuit, but it can be the horn, brake lights, or cigarette lighter on other vehicles.
All radios act differently when that memory twelve volts is missing. Some just have no sound. Some are totally dead. Some work fine but reset to 12:00 each time you turn on the ignition switch.
For the lights, I will have to dig up a wiring diagram. I have a 2014 Ram 1500 that was smashed. A friend has a body shop where he specializes in rebuilding smashed one and two-year-old Dodge trucks. I do a lot of his electrical repairs, so I am fairly familiar with them. Check, if possible, if you have a huge electrical connector behind the inner fender behind the left front tire. That will be a dandy point to make voltage tests.
Monday, November 21st, 2016 AT 7:33 PM