I just received my 2nd 300c, and it has pretty much every option, all except for Sirius. I called the dealer and they said that it doesn't save any money simply by having the navigation unit already in the vehicle, and that parts and labor would be around $700 to add Sirius. That sounds like too damn much, and I was wondering if anyone has any suggestions to get it done more cheaply. If it helps, I live in Orange County, but work in downtown LA (just in case someone local knows of a shop that can get it done cheaper). All comments appreciated.