How do you open a 88 thunderbird trunk without a key?

To open a 1988 Thunderbird trunk without a key, you can try using a slim jim or a coat hanger to manipulate the lock mechanism, but this requires some skill and may damage the car. Alternatively, you can access the trunk through the back seat by folding down the rear seat if it's designed to do so. If these methods don’t work, consider contacting a locksmith or a professional who can unlock it without causing damage.