In the 1930s, music while driving a vehicle was limited to AM radio. By the 1950s, there was FM radio and then later on the compact cassette player in the 1960s and 1970s. It was only in 1985 that CD players were installed in cars and as the years progressed, multiple technologies began to emerge improving the in-car entertainment system for vehicles. Today not only can you stream music while in your car, you can have features like hands-free calling, GPS, and voice-controlled digital audio playback, and live radio. Of late, live radio – or streaming music – has become the preferred choice by many.