Recently acquired a 1994 Mustang Convertible, but there's an issue. Every time the brakes are tested, the number 9 fuse under the dash blows (usually within 3 taps of the brakes). When this occurs, horn does not work, and the car will also not start unless put into neutral first. The car will also not be able to be put into neutral without having the key turned one click (without turning lights on, etc.). The relays under the hood are fine, as well as the brake light switch. Looking over the Jayne's manual, it appears that the problem may lie in the taillight wiring somewhere, however this does not explain the shifting issue. Any feedback or insight is appreciated.