After some help if possible with the Meta system. I've only bought the car yesterday and I've been using the round fob that came with it. In the bits and pieces that came with the car there is a square fob, again one button. I've been sorting keys out for my partner and when i used her's earlier (square one) the siren gives off a strange noise when dis-arming.
Its a tad annoying and I've searched the forum / google and can't seem to find an answer - any ideas?