UPDATE:

Installed a working diversity antenna, no change. Key fob not working at all. So that eliminates the diversity antenna as the culprit.

Does anybody know the steps for pairing the key fob to connect with the car? I've read on another forum that to pair: put the key in, start engine, stop engine, take out key and press lock on the fob . I tried and it doesn't work either.

Also, anybody know of the software that can be used to test the key/CAS?

Thanks!