AUX Input
Auxiliary Inputs enable the unit to receive an audio or video signal from a separate source. There are many different types of connections and ways to accomplish this. Most common are RCA Composite cables and 3.5mm mini-jack plugs.
RCA A/V Inputs: These are your typical red, white, and yellow RCA composite cables that are common among devices with audio and video inputs. The red and white cables are dedicated for audio. The red cable is for the right channel and the white is for the left channel. The yellow cable is specifically for the video signal. Because this type of auxiliary cable contains 2 channels of audio, it will support stereo sound.
Audio RCA Inputs: These are RCA composite cables that just carry an audio signal. The red cable is for the right channel and the white is for the left channel. Because this type of auxiliary cable contains 2 channels of audio, it will support stereo sound.
3.5mm: This is commonly referred to as a mini-jack or a headphone jack. It is a 3.5mm plug that transfers audio only. There are 2 channels (right and left) of audio on the plug which allow for the sound to be played in stereo.
3.5mm AV Input: These plugs look similar to the common 3.5mm mini-jack, however they carry a third channel dedicated for video.
Optional: This means that an auxiliary input is possible, but only with the use of an optional accessory. These optional adapters will sometimes use the CD Changer port or other port on the back of the unit that might restrict the use of other expandability features. They are typically sold separately.