How do you replace power antenna in 91 caprice?

To replace the power antenna in a 1991 Chevrolet Caprice, start by disconnecting the negative battery terminal to ensure safety. Remove the interior trim panel adjacent to the antenna, then unscrew the old antenna from its mounting location. Disconnect the wiring harness and remove the antenna assembly from the vehicle. Install the new antenna by reversing the process, connecting the wiring harness, securing it in place, and reattaching the trim panel before reconnecting the battery.