The convertible's rear seat does not lay down. If the trunk latch or wire fails, there is a key cylinder behind the top driver's edge of the back seat that pulls on a cable to release the trunk latch.
I've wanted to do this for quite some time because the rollbar keeps the seat from going all the way down. The harness & cross bars come out relatively easy, but the cable makes it much easier. Also, if the trunk is full, enough stuff has to come out through the back seat to crawl in and pull the escape handle on the trunk lid.
Great info here, THX to rray
https://www.camaro5.com/forums/showthread.php?t=341236
All that's left is to put some sheathing over the cable
I did not install the lock, just left the cable where I could get at it. It is stiff to pull, but you can open the trunk with the cable by hand
20995417: Cable < $20