Need Help With a Stereo Antenna

I realize that guys but I thought this quote meant he wanted to add a radio antenna after removing the original from the fender.
So apparently we are talking a Sirius radio GPS receiver then.

"I'm using the box area for my speedo GPS and there is room for a small radio antenna."
TrailBeast, you are correct in what you've said, but I'd rather not have satellite radio if I can get an FM antenna that will fit in the cutout I've made. What I don't want is a windshield glued antenna the looks funky. What I want is to locate both the speedo GPS and the FM antennal in the dash cutout. The satellite radio is great but the cost does not make sense for a car that is not driven daily. Does that make any sense to you?