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Pioneer Auxiliary (Aux) Input Adapters

Also referred to as "Head Phone Jack" or "Mini-plug" these 3.5mm plugs are a popular source for Auxiliary input. You can connect any device with a Head Phone plug to a 3.5mm input and stream music through your vehicles radio.
Convert your after-market radio's CD Changer Port into a usable auxiliary input, such as RCA or USB.
Adding a switcher or hub, will allow you to connect multiple sources of audio to your single auxiliary input at the same time.