I had XM radio in my 330i, and just bought a new 2006 530i. I want to put in an XM Commander, but can't figure our where to put the display. I want a really "clean" installation, and don't want to drill holes or anything like that. Has anyone else installed (or had installed) one of these? Where did you put the display. Also, did you connect via FM modulation, or through the AUX input?

Thanks!