This cable allows you to connect your Arcade1up stock Volume switch to your LCD controller. Works with all known arcade1up's that have the 3 pin volume switch(almost all of them). LCD controller must be M.NT68676 based. This is the most common one used. Please contact us if unsure. HDMI Audio only and your audio output must be plugged into the LCD controller. Can be with amplified speakers and 3.5mm plug or plugged directly into the LCD controller using the internal amplifier.  Has 2 power LEDs. Green LED is for power on with signal. Red LED is for power on no signal. Power button will turn off the LCD controller and audio.