Tweeters in Mustang A-Pillars: Does anyone have them in their Mustangs? Did they come with your Stang, what Year and Model is your Stang, would those A-Pillars fit in a 07 GT? And also, where can I get those?
the overdrive button is just another gear, there is no real reason to ever turn it off it wont do anything other than keep you from shifting into your final gear, generally called "overdrive" because the gear is less than 1 to 1 with the engine's turning.
TSC i assume is the traction control system, leave it on unless you are at the track then you may wish to get used to launching the car yourself.