I just had bluetooth and XM installed by Gino at Gino's Autosound in Piscataway, NJ. He does all of the work for the Maserati dealership in Edison. The bluetooth module works incredibly well - steering wheel controls allow access to the phone and works smoothly. Gino did an incredibly clean job and is a great guy! The XM was tied in so that the station names show up in the RDS of the stock display (and in the screen in the dash). Gino is great!