My new alarm system control panel is in my loft. Unfortunately that means that my wife cannot hear the beeps from the panel to know if it is set or unset. I thought I had a simple solution when I ordered a Spy Bug kit from Maplins:http://www.maplin.co.uk/media/pdfs/N50FL.pdf . I hadn't realised it was a kit, but made it up in my office and it worked fine. Longer leads had to be used from the loft to the speaker than the test ones. I also incorporated a little switch on the box I put the speaker in order to switch it on or off. The setup works, except that whenever it is switched on, there is a continuous buzz from the speaker. Can someone please give me an idea of how I can get rid of this?