Hi all hope someone can help on this, I bought a 99 GT about a month ago or so, ran fine at first then was just driving on the parkway and all of a sudden the car died then the theft light started flashing fast and my odometer reads all dashes, so got it towed home unhooked the battery for a few days and went out to test it and it started up and ran fine for a few days then it did the same thing and had to have it towed again this time I didnt get back in the car for a couple weeks when I...

1999 Mustang GT