Car Electronics Cheapest Parts On the Web

I got XM satellite radio for Christmas yesterday. I don't want to get it professionally installed, and I don't have a tape deck, so my only other option is to use the FM Transmitter. My husband installed/hid all the antenna wires properly (we have it already in his car, so he knows what he's doing). The problem is that I can't find a good radio station to tune my stereo to. I went up the stations point by point, and none came in clearly. I also went to the website and entered my zip code to get the recommended stations to use, and none of them work. I only heard the XM on one station that I checked but it was really staticky, and when I put the XM down, it cut out. I called the XM tech support and she said "you're going to have to get it professionally installed". I already use an FM transmitter for my iPod, so I know it's not my car. Also, it's not my area, bc my husband doesn't have this problem. Has anyone else had this problem? Can you anyone offer any suggestions? Thanks.