OK... there's mics and there's mics. I'd assume total incompatibility and work from there!
If you can get access to the mic wiring, test if any voltage is being applied from the Uconnect. If not, it'll be safe to short the wires together on and off for testing. What you should hear is faint clicking, and even a bit of hum / interference as you handle the bare wires. If you don't, it is extremely likely there is a problem inside the Uconnect.
Photos of what areas you can access for testing would allow "us" to help you better.