alarm wont stop

So do you have a aftermarket alarm or is this just your factory alarm that wont stop going off?A lot of people add aftermarket alarms even if there is a factory alarm already there.So your car battery went bad and you changed it?Or your remote battery went bad and you changed it?

factory alarm and i replaced the car battery

So i take it the remote worked good before the battery change?If so lets try this with everything hooked up stand close by the car and hold down the lock and unlock buttons at the same time for about 10 seconds then see if you can turn off thr car with the remote.