Hooking up a garbage disposal requires basic plumbing skills and tools. Begin by shutting off power to the disposal and unplugging it. Next, remove the existing sink drain and insert the disposal's mounting assembly. Secure the mounting assembly to the sink with screws and attach the disposal to the mounting assembly. Connect the dishwasher hose, the drain pipe, and the mounting ring to the disposal. Finally, turn on the power and test the disposal for proper function. It's recommended to follow the manufacturer's instructions carefully and to seek professional help if unsure.