Hi guys.. I am a new member, and could really do with some help.... I have got a problem with my alarm not sounding on my 1999 slk ... The doors lock without a problem, and the indicators flash when I arm the car, but I get no sound.... I have replaced the siren with a new one due to leaking back up batteries.... but still no sound.... If I set the alarm off.... The hazard lights flash... but the siren will not sound...... am I missing something ??? I really want to get this working....... Please help......

Darren..