9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
Over the last 2 weeks, my car alarm has gone off several times while the car is sitting, unmolested, in my driveway.
There haven't been any earthquakes, sonic booms, or low-flying helicopters to shake it. The battery appears to be healthy (only 2 years old). I did a Google search for car...