About 1 1/2 years ago my automatic door locks would not work and a fuse was replaced under the dash. About 6 weeks ago the fuse blew again and was replaced but now has blown again. Now my door locks don't work in addition to the fan (no aire coming through the vents). Are these 2 things working off the same device? Or do I have 2 separate problems? I am afraid to drive the car in case something else "blows" out.