What Is an Auxiliary Jack?

Many stereos and audio devices have a small hole on the outside, either on the faceplate of the device or the back with the other ports. This port is known as an auxiliary jack and comes standard on many devices.

Definition

• An auxiliary jack is a jack that allows a user to connect an electronic device to a stereo or car player for playing. These players have their own "Auxiliary mode" that allows the jack to be used.

Cables

• Most, if not all, auxiliary jacks require an RCA 3.5mm Stereo cable in order to connect the item to the auxiliary jack. Some jacks may require another type of cable; you should consult your stereo's manual to see if this is the case for your device.

Connection Setup

• The other end of the stereo cable should be connected to the electronic device's "Line out" jack. If no such jack exists on the device, use the "headphone jack" instead.