My Fast sys is 2 1/2 years old. I was just getting onto it 1 1/2 years ago. My cars been silent since May 02 waiting for the T/A block. Once I have it-will I find my sys is out dated? Is there and up date or revision I can add to my exsisting sys. I ask, because-I went to Buick day in Norwalk, Ohio and met this guy with a new version. He displayed 3 maps on one screen- nice. LArry