He altered the head unit to play MP3 files from USB and added an auxiliary line-in ... the work he did to create a false button hiding the audio jack, and a false cassette hiding the USB port ...

The analog AUX jack enables any music player to play ... be transferred between iPods and other digital players. See audio jack and USB. THIS DEFINITION IS FOR PERSONAL USE ONLY.

Plug and Play: This Lightning to 3.5mm + USB Audio CHARGING cable is designed to facilitate the playback of iPhone music in the car aux, speaker, headphones. You can play music while charging on ...

Not that long ago, you’d need to pair via Bluetooth, find the right USB port, or even send audio through the car’s 3.5mm auxiliary input. But what if even the humble aux port isn’t an option?