Hi! here is my ,,new to the forum" post! I installed like 6 months ago a Texecom 412 cental with a lcd panel and an external sounder (odyssey). So far everithing fine, but yersterday during an output test, I noticed that the internal siren of the central does not sound, only the extenal siren and the the speaker of the pannel. I remenber having heard the three sound when I installed them! Do you think the one inside the central will not sound afer having installed an external one? Many thanks in advance for your comments!