By Brandon Matthews
Recently I had written an article which estimated Sirius XM's (SIRI) potential second quarter 2009 subscriber numbers. In all honesty, it was not meant to be a real estimation, as it was based on an estimation of a percentage of total auto sales. The way I see it, predicting subscriber numbers based on outdated methodologies is meaningless. Odds of hitting your states lottery are probably better.
Just look at the facts. Penetration rates among auto manufacturers vary by...
