Hi guys & girls,
just wondering if anyone knows how to make the siren work on my sigma alarm? the indicaters flash when its going off but i have no siren not even a weak and feeble meh. any help would be greatly appreciated.

 

mines so quiet I have stood touching the car and hardly noticed it going off until I saw the lights

 

ive got same problem on mine. haven't got round to looking at it yet but expect it needs a new one

 

Check there is a s siren first, I had the same issue and found it had been removed.