I got the windshield mount antenna from Radio Shack, you can search this forum or the internet for a similar one.

The one from Radio Shack is a thin wire in what looks like scotch tape and it goes along the inside of the windshield.... the reception was fine for me when I had it, I just didn't do a neat job installing it so I removed it, otherwise, it worked great for me. You can try it, they sell it for like $8.