How do you open the trunk on a 1978 trans am that the key will no longer open?

If the key no longer opens the trunk on a 1978 Trans Am, you can try accessing it through the back seat. Remove the rear seat bottom and check for a release mechanism or a way to reach the trunk latch. If that doesn’t work, you may need to carefully use a slim jim or a similar tool to unlock the trunk lock, or consider contacting a locksmith for assistance.