Just replaced a broken housing on perfectly functioning 04 keyfob. Now the key is still able to unlock the the doors but unable to start the car.

The paperwork with the housing mentions a re-sync process involving the rear view mirror if the batteries are left out for to long. I've tried that process and another I read here in the forums, however the symptom remains.

The Chrysler dealer seems clueless about a fix, but assures me spending big money with them will result in a solution. They also made sure to put down the Crossfire because of it relation to Mercedes. The Mercedes dealer just wanted to passed to buck back to Chrysler.

I have faith the forum members here are smarter than the dealership.