I've had my 2008 SLT2 for about 3 weeks now and love it. I'm hoping someone can help me regarding a problem with the Nav radio. I typically listen to an XM station and it is normally on XM when I turn off the vehicle. Often, when I start the vehicle it is on an FM station that I basically never listen to. I've tried everything I can think of to correct this - the book is not very helpful. Yesterday I stopped at the dealer and they re-synchronized the key with the car and then saved my settings. They tested it a few times and said the problem should be solved. This morning, voila!, back on FM. Has anyone else experienced this? I would love suggestions on how to resolve.