Systems and method for vehicle top advertising are provided. Cross bars span a roof of the vehicle. A vehicle top unit with an electronic display is attached to the cross bars. One or more exterior coverings are connected to at least one of: the cross bars and the vehicle top unit. Wiring is extended from a power source located outside of the vehicle top unit, along at least one of the cross bars, and to the vehicle top unit to place the electronic display in electrical connection with the power source. The exterior coverings each cover at least a respective portion of the wiring.