The tasks an Accessory Fitter is expected to perform include: Installing and fitting vehicle accessories. Installing and fitting the vehicle's exterior, interior, media and entertainment accessories. Fixing security related accessories depending on vehicle type and model. The individual in this job is responsible for installing and fitting various exterior, interior, media and security related accessories on/in the vehicle. A car accessory is any extra item or product designed to improve the functionality, comfort, aesthetics, or safety of a vehicle. Car accessories can be both interior and exterior in nature, and they can serve a variety of functions such as protection, organization, entertainment, convenience, and personalization.