How do you install a hardtop defroster on a 1997 Miata?

To install a hardtop defroster on a 1997 Miata, first, ensure you have the necessary wiring harness and switch. Begin by removing the interior trim from the rear window area and connecting the defroster wiring to the existing harness, making sure to secure any connections. Next, mount the defroster grid on the inside of the hardtop rear window according to the instructions, ensuring it adheres properly. Finally, reinstall the trim, connect the switch to the dashboard, and test the defroster to ensure it functions correctly.