I am looking at buying a 2007 GT coupe. I have some questions about some of the options. On the ford web site they do not show the stripes as an option. How do you go about getting them? Are they an after market option or a dealership option. Does the shaker 500 audio system sound good or is it a typical factory system. Also the ford web site shows a 3:55 gear as an option. What is the factory gear ratio? The reason for the questions is that I am in the military and I am going to buy this vehicle through AAFES military sales. The sales person is not a ford rep and does not know the answers to these questions. Any help would be appreciated. Thanks