i have a 2005 bmw 325ci coupe and i just discovered i can make the windows go down by holding the unlock button

anywho! does anybody know any other things u can do? like putting the windows back up
and i would also like to set up the alarm sounds because right now it only lights up the tailights and i would like it to make sound also. can you please email me or even better post somewhere in here a link to how to set up the key?
[email protected] (thanks in advance)
and by any chance does anybody know how to get the bluetooth access key? i already checked the trunk but the metal boxes have no numbers at all