Hoping someone could help. I bought a used 2000 Audi A4. The back window needs to be replaced. I went on SafeLite to have it replaced, but during the scheduling process it asked me an option on the rear window and I have no idea how to answer it. It basically gave me two options for the rear window:

Option #1 - Heated, antenna
Option #2 - Heated, antenna, diversity antenna.

While I understand the purpose of the diversity antenna, I know nothing about cars and was wondering if there was an easy way to tell which back window I have just by looking at it (hopefully without taking apart any paneling). Anyone know?