Process and device for activating a motor vehicle accessory

A process for activating a motor vehicle accessory (12), especially an auxiliary motor vehicle heater, and device for controlling the motor vehicle accessory (12) in which the activation commands for the motor vehicle accessory are input into a control part (10) which has control keys (11), an operating system, application software (16) which is specific to the activation of the motor vehicle accessory, a display (15) which also serves as an activation surface, and a data transmission interface (18), the activation commands are processed into activation data in the control part using the application software, the activation data are transmitted via the data transmission interface of the control part to the data transmission interface (21) of a base station (20) and are converted there into radio signals, the radio signals obtained in this way are output via a radio interface (22) and are transmitted to a radio remote control remote terminal (25) in the motor vehicle (13), and the motor vehicle accessory is activated by the radio remote control according to the activation commands which have been input into the control part.