is it possible for the power sounder to cause a massive drain on the main battery? i have removed the power sounder thinking that the batteries were dead, i then jumped the car with leads and everything is back to normal, or at least seems that way, i jumped the car yesterday, let it run for about 5 min, checked that the battery was receiving a charge and it was, turned off the ignition, then this morning the car started first time, very weird! the only other thing i need to do is change the brake light switch as that seems faulty, only working some of the time, but thats easy, just waiting to get the part