The universal fleet electrical system is an integrated system for supplying electrical power to aftermarket accessories, particularly to police vehicles and other emergency vehicles. The system includes a central power distribution panel, which includes a fuse panel and a lighting selector junction box, together with a universal wiring harness. A variety of custom wiring harnesses may also be used in the universal fleet electrical system. A dash mounted console is provided for operator control of the various accessory devices. The lighting selector junction box permits various lighting accessories to be connected to different light level circuits through push connectors, so that a plurality of lighting devices may be controlled by a single switch.