E = Mc2

I'm wondering where the most recent generation's radio antenna is located. Is it in the back glass or roof mounted? I've noted a number of Accords running down the road with a small antenna on the roof. Is that roof mounted antenna only for the satellite radio/navi, or does it work with the AM/FM radio as well? For some reason, I can locate a part number for it online. I see what looks like a roof mounted antenna on the parts diagram, but no part# associated with the parts diagrams.

I'm curious because I'm afraid that someone will tear off the antenna on my Fit. I have to leave it parked down town overnight when I'm at work, and I'm usually gone for a day or more. If the Accord's roof mounted antenna works with the AM/FM radio, then I'll retroFit.