I decided to go with the Ottonavi unit after much research although I was dissapointed that it wasn't satellite ready. The price compared to similar units swayed me toward their product and they answered their phone and were helpful every time I called. I came across the Vais SoundLinQ2 device and it seems like it may work to intigrate Sirius into the Ottonavi setup. (Video,Audio Information Solutions for Toyota and Lexus (iPod/iPhone, USB, MP3, XM/Sirius SAT Radio, Video integration)) Has anyone used this with the Ottonavi HU and how well does it work? Easy install?