Radio locking + alarm system

Hi people
New quiz question:
Mine has the standard alarm system inside and so a box for the radio lock (accessories). Now it's good to close with the key, but not with the radio thing... the alarm system is really not sharp, all in all not such a problem... But when I close with the key and then open with the box, the orchestra starts... Now I would like to know, among other things, how exactly the alarm system is controlled, is that a switch in the door lock? what color are the cables? I might be able to do so. connect them correctly and the alarm system would then be sharpened and defused with the box... I've got the circuit diagrams, but from the wrong year... the colors aren't right...
Oh, yes... I don't have any instructions or the like for radio locking, it was already in there...