alarm probs

hi guys im new here from s.a. i have a jetta3 1999 model csx. the original keys were lost as well as the remote. now the immobilizer has been disconnected as well as the alarm. i loosened the glove box and found two plugs that goes in the alarm box. when i put the plug with the lesser wires in nothing happens. when i put the other plug with the more wires the siren started sounding. i then disconnected the siren and took the plugs out. apparently the box is in alarm mode now i need to reset it again. any help guys. thanks in advance.