The Nu Multi connects inside the guitar via a multi-pin cable to the Internal Breakout board which provides easy access to all the Nu Multi pins using standard header (2.5mm and 2mm) connectors. The small breakout board includes pins for 15 channels of combined audio and analog control voltages (CV) and switches (SW). Audio inputs can come from the Nu Multi as well as other monophonic sources (e.g. standard guitar pickups). Control voltages and switches allow remote control of volume, tone, patch, or effects. The Internal breakout includes reverse polarity protection plus a low-noise voltage regulator for the Nu Multi, other active pickups, and auxiliary circuits.