I have a very puzzling issue related to the trunk lock related to my 1988 BMW 750iL, production date 9/23/1987. In 2008, while the car was being kept in outdoor storage, thieves attempted to break into the trunk of my car. The break in attempt failed, however the trunk lock was damaged to the extent that it requires both the key and a set of pliers to open my trunk. There are actually THREE trunk locks involved here, detailed below: The original trunk lock still installed in the car. A replacement generic lock with key I ordered in 2014. A lock supposedly keyed to my VIN number that is supposed to be a replacement for my original damaged lock. I ordered this a month ago. When I received it, I determined that my original key physically fits in this lock but will not turn in the cylinder. The parts specialist surmised that because BMW will only replace the lock and key on a car a limited number of times, it is possible that this car may have had all its locks changed at some point during its 29 year history. I purchased this car in November 2005, and until the break-in, I was able to start the car and open all doors and locks on the car with my one key. Are there any resources in which I might either be able to transplant the lock cylinder from my original damaged lock assembly to an intact one, or perhaps recode the existing lock cylinder in the one of the two new assemblies to work with my original key again? Keep in mind I am not comfortable performing this swap on my own, as there are very tiny wafers involved, and due to my eyesight limitations, I am not comfortable working with such tiny, delicate components. Thank you in advance.