Hey Chad, I did realize you can do that with a XM antenna, I thought it had to be on the roof, before I start drilling and such, do you know if I did an antenna setup on mine like yours, would it be able to recieve signals? My rear window is tinted so that's another factor.

This is a quick shot, but the sun is just behind me as I'm taking this picture so it's more illuminate of the interior than usual.