Autoelectric are the electric systems that are used in the vehicle. Some major systems include Alternator & Starter, Battery, HVAC parts, Lighting system, Meters and Gauges and the power inverter. The Automotive Electronics is now-a-days become an increasingly large component of the automobile. These components have evolved throughout the 20th century. In 1950 the electronic components of a vehicle were merely 1% of the vehicle , this percentage has risen up to 30% till 2010.