can anyone put me right about the siren, right cut it open found board ok no acid , battery voltage 5.2 volts which is good, ri installed after sealing it followed instructions t2 in ignition 1 hold button in ignition2 3 flashes of yellow exclam sign beep then release button turn off, put ignition back on same siren service, tried multiple times , same thing over and over, so there must be something else any ideas anyone please, john.