CarPlay, or Apple CarPlay is an Apple standard that enables a car radio or head unit to be a display and controller for an iOS device. It is available on iPhone 5 and later models running iOS 7.1 or later.
Wireless CarPlay in a Volkswagen ID.4
Vehicle audio is equipment installed in a car or other vehicle to provide in-car entertainment and information for the occupants. Until the 1950s, it consisted of a simple AM radio. Additions since then have included FM radio (1952), 8-track tape players, cassette players, record players, CD players, DVD players, Blu-ray players, navigation systems, Bluetooth telephone integration and audio streaming, and smartphone controllers like CarPlay and Android Auto. Once controlled from the dashboard with a few buttons, they can be controlled by steering wheel controls and voice commands.
A DIN head unit with radio and CD
1937 Philips Auto Radio. Weighing 24 kg and taking 8 litres of space, it was floor mounted with a wired remote control to be fitted to the dashboard.
A 1950s Philips car radio using both transistor and valves. This model used a range of valves that only required 12 volts for their plate (anode) voltage.
A car stereo head unit in a dashboard
