As an auto electrician, your job is to install and repair electrical systems in vehicles. This includes running diagnostics, fixing electrical malfunctions, adjusting automotive systems to the customer's specifications, and adjusting the wiring. You often perform installations of new systems like car alarms and entertainment units, ensure car locking systems continue to work, and spend time researching new systems that customers may want. Some auto electricians work with specialized vehicles, such as buses, waste disposal trucks, or emergency vehicles. Employers should provide additional on-the-job training since few schools specifically teach how to repair these systems.