Mine drives me nuts! I'm thinking of removing it.
Hi,
I think that's why many peeps are disconnecting it. Mine is also disconnected (at the end of the steering column) and I tried yesterday, it works, but also before I start the machine. You say here that's normal, also the manual, but it's really annoying if you just go in plug in the key (OK, only with open doors) and this buzzer starts. Would be better, just if you switched off the engine and you leave the car. But I will connect it, as it was designed like this. No more key in, when doors are open.
CU
walkAbout