The HDMI^® Audio Return Channel (ARC) enables you to play the audio from the chartplotter over the stereo system speakers and play HDMI audio on the chartplotter using only one HDMI cable.

ARC eliminates the need to connect a separate audio cable from the chartplotter to the stereo. Typically, in systems without ARC, to play the audio from the chartplotter over the stereo system speakers, you would need a separate cable.

The HDMI version 1.4 cables support ARC. When planning your stereo installation, you should check whether your devices support ARC. Most devices that support ARC have an ARC label on the HDMI connector that supports ARC.