The battery went dead. When charging the battery

Need the year make and model. Some will disable the alarm with the key turned on. Some have procedures you have to do. I don't know them all though.

The battery cannot be dead if the alarm is going off. however it might be to low to start the car and cause this situation. I would use the alarm remote to reset the alarm or un-hook the ground cable on the battery. Or charge the battery.

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You need the VW scanner to reset the system and reprogram it after loss of power to the system. Aren't VW's great?

We do not have info on aftermarket systems. Suggest you remove it completely and install a quality system.

MAKE SURE CAR DONT HAVE A ALARM.WHEN YOU HAVE A AFTER MARKET ALARM AND BATTERY GOES DEAD OR IS DISCONNECTED,SOMETIMES IT ARMS ITSELF N WILL NOT CRANK.

disconect the battery and charge it then reconnect it

No, a car alarm will not go off if the car alarm is dead. -------------------------------------------------------------------------------
FGTECH Adapters

you need to disarm the alarm. unplugging batt. or dead battery being jumped sets of the alarm not all alarms make noise
use remote to lockand then unlock doors need to be closed
or lock then unlock door with key if it dont reset then try passenger door

Sounds like you have a shorted wire causing a drain. I recommend disconnecting the alarm all together which should stop the short so battery can remain fully charged.

I am having trouble also but I need to know how to disconnect the alarm. I would appreciate it if you could help me out seeing that you have disconnected yours. Thank you