Car Alarms: 1999 Mercury Mountaineer alarm system, alarmtek, mercury mountaineer

Question
I charged the battery and the alarm went off when I reattached the cables.  I shut the hood but that didn't turn it off.  I could not start the car and can't figure out how to
stop the alarm and start the car.

Answer
Please be more descriptive if possible.

"GOING OFF?"

I need to determine whether it's a factory alarm
issue or, if it's an aftermarket system you are
dealing with.

Is it: Headlights flashing, car horn honking
and a worded SECURITY" light in the dash flashing?
(doubtfull since none of the notes show this
car as having a factory alarm system)=FACTORY

Or,

is it: flashing parking lights,
an LED in the dash area, and a siren
going off?= AFTER MARKET

Let me know more on this to better
advise you on a course of action
to take.

Best Regards,

Robert Martin
CEO/ALARMTEK
CARALARMMAN.com