Replacement autowatch alarm siren?

[coolchris]

Hi guys
My siren has packed in on my car it has an autowatch 160RLi unit.
Have found a company that has replacement sirens at £65 was wondering do i have to have a genuine autowatch one for the system to work or are there compatible (cheaper) units out there?

Cheers Chris

[jdearden]

Chris I looked for alternatives and came up with nothing. Easiest just to get the right one. Easy to fit too.