I get 2 beeps from my new blinder m-20 x-treme everytime, one when i first start the car. And then i get a second beep that lasts a quick second or 2 30 seconds later. I had someone else install it, a professional install i guess you could say. Is this normal to get 2 beeps from the m-20? My bel 995 doesnt pick up any signals, and the second beep happens no matter where i start the car..the garage, a parking lot etc. Is this normal or whats going on?