I have a 99 GT convertible. 4.6L V-8. I have searched everywhere, and can't find the computer module that controls the interior lighting. Ford has discontinued the part, and there's a guy in Syracuse that might have one, if he can get around to checking it out. My Mustang has been sitting in a repair shop for almost a month with a new top, new paint job, new this and that. If I can't find this part, the car won't work at all. Can anyone help? Thanx.