I know this really isn't a tech subforum, but any help/ suggestions would be appreciated. Anyway I picked up a factory referbed unit for a song the other day, and finely got it installed tonight, but for the life of me I can't get a clear signal out of the FM modulator. I tried that external FM antenna in every position possible (hell I even wrapped it around the FM antenna once to see if that would help), and could not get a static free sig off it. In Fact it's actually better without the external antenna hooked up. The vehicle in question is a 2006 Chevy Express van. It's radio has an excellent tuner in it, and picks up stations that my aftermarket Pioneer can't pull in so I don't think the radio is the problem. The Sirrius's external antenna does work. If I move it around the static will get worse, but never crystal clear. Is this something normal, or you think something is wrong with the FM mod part of the radio? Am I just going to have to get a direct connect adapter for it? I can't fathom that the Fm mod would be that bad in every unit sold that you'd need to direct connect it.