Q&A

 Master

Does it vary in proportion to the speed of the car or not? If it does, I'd look for a pebble or nail in a tire, or a brake problem. If not, it may be engine related, could be an exhaust leak at the cylinder head or a belt noise. I'd need more information to tell you more, I suggest the you get to a Dodge specialist for a diagnosis if you can't find it.
If you want to find a specialist, here's a directory link for you:
https://repairpal.com/directory?address=23223&car_brand_n...