Also called a "receiver," the head unit provides the main controls for the radios (any combination of AM, FM, SiriusXM, HD Radio) as well as a CD/DVD player, GPS navigation, Bluetooth cellphone ...

Upgrading your car's infotainment system with wireless CarPlay can be a game changer, and you have two main options with which to do it: a portable CarPlay screen or a complete in-dash head unit that ...