I have a 2004 TL with a nav system. I have been having problems with the system not recognizing my voice commands. I also got an error message saying that the system (nav) was to hot and would shut down. The dealer replaced the microphone and the nav screen. The system still does not work properly and they are going to replace the entire unit. Has anybody else had the same or similar problems?

Alan Green
greenad@optonline.net