Seems like a solvable problem, the trivial solution is to have the dealership program multiple fobs identically. I guess maybe not solved yet because: - The t

Seems like a solvable problem, the trivial solution is to have the dealership program multiple fobs identically. I guess maybe not solved yet because: - The trivial solution also means multiple cars respond to e.g. "unlock" if they are parked adjacent. - Anything more complicated means custom electronics for a niche market. By contrast every small town in the world has a fundi who can duplicate your physical key.