Abstract: A plug and play avionics kit includes an avionics panel, the avionics panel including avionics including instrument cluster electronics, one or more aircraft engine electrical component connections, one or more line replaceable units and one or more electrical harnesses, wherein the avionics kit is configured to install in a home build aircraft and the instrument cluster electronics, one or more engine electrical components, and one or more line replaceable units are connected by the electrical harness. The avionics panel may further include an avionics tray and a rack for line replaceable units.