FS touchmaster delta SW problem

[@eb6561]

Hi this is Eric from Germany and i drive a retired Riverside County Sheriff Crown Vic with a touchmaster delta siren and perhaps you may help me.. i got each wire with its own fuse and everytime i try to use something thats about making a noise like using the PA or Wail, Yelp, Horn or just even the TEST function, that fuse from the SIREN wire is burning so fast even before any noise is getting out. It also happens when the Loudspeaker is not connected to the Touchmaster. Do you have an idea why this happens? I changed nothing it just happened suddenly and now it goes on and on.. Greetings and thank you so much, Eric