A display apparatus for portable electronic device including a base, a plurality of mounting sleeves, a plurality of mounting posts, a plurality of mounting brackets, and a power supply unit. The base has a lockable panel that conceals an interior space at least partially defined by the base. The mounting sleeves are coupled to the base. The mounting posts are lockingly engaged with the mounting sleeves in the interior space at least partially defined by the base. The mounting brackets are secured to the mounting posts, each of the mounting brackets fixedly retaining a respective portable electronic device of a plurality of portable electronic devices so that the respective portable electronic device is rigidly secured relative to the base. The power supply unit is concealed and has a plurality of power ports shaped to receive automotive accessory power plugs from the portable electronic devices fixedly retained in the mounting brackets.