Getting CarPlay to work with Mopars

This is a comment or resource for those who install (CarPlay compatible) aftermarket head units in their Chrysler/Dodge/Ram/Jeep and then get partial or no audio on CarPlay. For some reason, all these Daimler Chrysler vehicles normally have their speaker wires REVERSED. Not a problem for new cars with CarPlay capable radios, but aftermarket installations have to wire right front to right rear, etc. NOT wire it directly following the color code. With wires reversed, the amplifier thus hears and plays the CarPlay voice audio.