BMW e39 Folding Flip Key Case Shell Refit
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"Folding Flip Key Case Shell Refit BMW 3 5 7 SERIES Z3 Z4 E38 E39 E46 Remote Fob"
So I got it to work but not the way it should. Check the link below if you have the same problem that I do. In some models the results may vary. Not all the key are the same.