I believe that requires the Anti-theft alarm system $400 option.
Older BMWs used to be pre-wired to have it added after the fact, now, I think it's a bit more complicated.
Mine has no audible sound unlocking/locking.
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'19 M2 Competition | '07 Heads/Cam/Stall C6 Corvette | '17 Ford Escape Titanium
Past: '14 M235i, '07 335i xDrive, '06 GTO, '02 Trans Am Firehawk, '99 Grand Prix GTP
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