HELP!!! my alarm keeps going off unless i leave the ignition switched on (not the engine just the ignition) to cut a long story short my mate threw my keys, i didnt catch them, alarm button thing broke...got it to work by holdin the button that snapped off against its connections n now it doesnt work anymore the LED still lights up when u press the button but the car doesnt respond in any way...would disconnecting the negative from the battery shut the alarm up just for tonight? its a selca car alarm dunno the model coz i cant find the bloody instructions!! thanks a lot please help...