An improved media streaming device and methods are disclosed herein for receiving and modifying a streaming signal to adjust the rate of occurrence of advertisements based on sensor data collected from various sensors associated with a vehicle and a mobile device found within an interior of a vehicle. The improved media streaming device may receive a risk score based on the collected sensor data, and may determine an advertisement tier based on the risk score. Further, the improved media streaming device may select targeted advertisement content based on at least the sensor data, the calculated risk score, the advertisement tier, and other contextual attributes relating to the driver and/or the vehicle. The improved media streaming device may then modify the streaming signal to inject the selected advertisement at the frequency prescribed by the advertisement tier.