Hi, thanks for coming back to me, checked the fuses and they were both OK. I found this thread https://www.crossfireforum.org/forum...p-clp-ssm.html that confirms my worst fears that the siren is connected to the CLP/SSM and having removed it from the boot I can see the same three wires going in to the unit. I am less than happy as it looks like an expensive part to replace (A193 820 03 26), all for a siren that I should have left alone.