Chosen Solution
Can the USB Port be changed?
johnstopka, yes it can, but you may have to hunt for a replacement. Remove the logic board, remove the EMI shield which covers the IC’s and the port. Then unsolder the old and resolder a new one. Consider purchasing a broken Nuvi to harvest the port. Here is the guide for the logic board.
If it is either because you need something off the device or for the sake of repairing a device and feeling the joy of being able to then go ahead. Otherwise get a used one. It will make more sense to your time and pocket. Just looked up on ebay really quick and they are not even $40 for a used one