Just bought a 2012 Grand Caravan and am upgrading radios. It came with the u-connect and the 430 radio. I have a brand new 730n which I slipped in and everything works but the microphone. After several hours of hair pulling, I am asking for help.

I have read that it needs a flash at the dealership. I have also read that it needs a new cable or a new mirror or both. I give up.

Thank you in advance for your help.