I have the original Delphi Sky-Fi unit for XM installed through an FM Modulator. I was listening to it today and some low end sound came through with a ton of static-like sound. To tell the truth, I had noticed it slighty when I first got XM in my car, but it was never quite enough to go through the hassle of getting to the bottom of what the problem is. But today, it was really bad. It's not my speakers, because I put in a CD after and cranked up the Bass and it sounded fine. Also, I have noticed this problem in other cars I have used the unit in. Has anyone else experienced this? Any possible solutions?